When you get an oil change, it’s always a safe bet to just use the type of oil the auto manufacturer recommends. But sometimes we’re asked if we’d like conventional or synthetic motor oil. We glance at the price tags on the two options and choose the cheaper one. But in this case, the more expensive oil might be the better bargain for Little Rock drivers.

Conventional oil is made from petroleum. Its molecules form long hydrocarbon chains. Synthetic motor oil is either more highly refined petroleum or completely man-made. Its molecules are more uniform. This provides important advantages over conventional motor oil.

First of all, the molecular structure of synthetic motor oil makes it more slippery than conventional oil so it lubricates better. This translates to better wear protection for Little Rock drivers, cooler operating temperatures, more engine power and increased gas mileage.

Further, synthetic oil is more heat-resistant than conventional oil, and it doesn’t vaporize as easily. It provides better protection for severe conditions like stop-and-go driving around Little Rock and very hot or freezing Arkansas temperatures.

Also, synthetic oil doesn’t generate harmful oil sludge like conventional oil. This prevents small engine passageways from becoming clogged, which can significantly extend the working life of your truck engine.

Manufacturers are aware of the advantages of synthetic oil, and many of them are using it to fill their trucks before delivering them to be sold. Many automobile manufacturer’s owner’s manuals now come with the recommendation to use only synthetic oil. Because synthetic oil wears better and protects better than conventional motor oil, it can be changed less often. If your truck came with a recommendation for synthetic oil, you may have noticed that the recommended period between oil changes is longer than what you’re used to. However, if you switch to conventional oil, you need to be aware that you can’t follow this longer service interval. You’ll have to change your oil more often.

On the other hand, if you are using conventional oil and you switch to synthetic oil, you may be able to lengthen the time between oil changes. You can speak with your honest Parkway Automotive service specialist. He can offer you good auto advice about oils and service intervals based on your driving habits and requirements.

Oil changes are the hallmark of important preventive maintenance at Parkway Automotive. All Little Rock drivers need them. So we should get excited about a product that reduces how often we need them. Synthetic oil is more costly, yes, but it can pay for itself by lasting longer than conventional oil. And when you add in the hidden savings of an extended engine life and improved fuel efficiency, not to mention increased engine power, there’s a good chance that synthetic oil actually saves in the long run. All Little Rock drivers pay for car care. But understanding what we’re paying for can make us more savvy shoppers.

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Little Rock car owners’ current vehicles have over a century of engineering behind them. They have evolved into complex and powerful machines. Developments in their engines, however, have coincided with advances in many other vehicle components, including the fluids.

It’s important for Little Rock drivers to always use the right type of fluid for their truck. Your service advisor and your owner’s manual are resources for auto advice on exactly what types of fluid your vehicle needs. Improper fluids can damage your vehicle and void your warranty.

Some of the fluids that have changed significantly in recent years are cooling system fluid, brake fluid, transmission fluid and motor oil. Each of these comes in many varieties now, and it’s essential to know exactly which one your truck needs.

Cooling systems were once made of iron, steel and rubber. One coolant could be used to protect all of these materials. But new cooling systems have components made from a variety of metal alloys and several kinds of plastic, and coolants now contain additives that protect these various materials from corrosion. Since the materials vary among auto makers, they require different additives, which means there are now a number of coolants on the market. The type of coolant your truck needs depends on the materials used in its cooling system.

Most vehicles used to require Dot 3 brake fluid. But now many vehicles need Dot 4 or Dot 5. Some Little Rock motorists mistakenly think the higher numbers reflect an increase in grade—that Dot 4 is somehow better than Dot 3. But the truth is, the numbers represent variations in formulation. The different formulas have evolved to meet the demands of newer and better brake systems. For a long time, transmission fluid came in two varieties: regular and friction-modified. But transmissions have come a long way recently, and so have the fluids that protect and lubricate them. There are several new types of fluid on the market, but your truck is designed for just one of them.

Of all the automotive fluids, motor oils have experienced perhaps the greatest advances in engineering and technology. A number of new weights and formulations have recently been developed to meet the needs of modern engines, which have more parts and tighter tolerances than ever before. Engines have become more sophisticated and complicated, but they have also increased in power and fuel efficiency. Despite these changes, Little Rock auto owners still need them to be highly durable.

That’s the job of motor oil. Motor oil still has to perform its original, essential function—lubricating and protecting the engine. It is formulated to help clean the engine as well. Modern motor oil also has to be thin enough to penetrate small engine passages yet still be resistant to vaporization.

Specialized motor oils have also been developed for high-mileage vehicles. If your truck has 75,000 miles or more on it, you might consider switching to one of these motor oils. They contain extra detergents that help clean older engines and vital additives that condition seals and gaskets that can become brittle with age. High-mileage motor oils come in weights and types just like regular motor oils, and Little Rock car owners should match the proper weight and type of high-mileage oil to their vehicle in the same way you would regular motor oil.

Over time, vehicles have developed in complexity and variety, and their fluids have developed as well. Each vehicle is matched to a set of fluids that meet its specific requirements. Arkansas vehicle owners should take care to learn their truck’s fluid requirements before topping off at home. A large part of preventive maintenance for Little Rock motorists is making sure your vehicle’s fluids are clean and adequate, but they must be the proper type as well. As our trucks become more sophisticated, car care becomes more sophisticated as well.

Learning about proper fluids for your vehicle will help you maintain its performance and prolong its life. Talk to us at Parkway Automotive in Little Rock.

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Today in the Parkway Automotive auto care blog, we’re going to talk to Little Rock motorists about oil change intervals. It seems that as engine technology advances, recommended oil change intervals have gotten longer for Parkway Automotive customers. High quality oil in a well-engineered truck engine has lead to extended intervals. But it’s also lead to some confusion among Little Rock drivers.

The old mantra “change your oil every three months or three thousand miles, whichever comes first” once applied to every vehicle on Little Rock expressways. Time and miles take their toll on motor oil. But now, you could have a different oil change recommendation for every car or truck you own.

Little Rock car owners are like everybody else, they have a tendency to follow the oil change schedule of the vehicle with the longest interval. Of course, that can lead to problems. For example, recently four of the world’s largest vehicle manufacturers shortened the published intervals for several of their engine models. They originally published intervals that extended out to a much as 8,000 miles.

In real world Little Rock driving, the oil started to sludge up before the recommended change interval. Oil sludge is a thick jelly-like substance. Quite literally petroleum jelly – like Vaseline. This goop was clogging truck small engine passages so the oil wouldn’t flow to some parts of the engine. This resulted in engine damage. We see it too often at Parkway Automotive in Little Rock.

The vehicle manufacturers began to offer an extended warranty to cover sludge damage. But there was a catch: the vehicle owner had to follow a new, lower service interval, and provide proof of oil changes in order to make a warranty claim.

So here’s the bottom line for Little Rock drivers: with longer oil change intervals, it’s essential to follow them closely. Back in the day of 3 months or 3,000 miles, if you went an extra month or an extra thousand miles, your oil was still fresh enough that it didn’t have time to build up much sludge.

But if your recommended interval is 6,500 miles and you go over another thousand, you’re getting into heavy sludge territory. You absolutely need to follow mileage intervals very closely. And don’t forget your severe service schedule. If you do a lot of stop and go driving in Arkansas, short trips, drive in dusty or polluted Little Rock conditions, hot or cold weather, or haul heavy loads, you’re driving in severe service conditions. Your Parkway Automotive advisor can help you determine which schedule to follow.

So check your truck owner’s manual or talk with your Parkway Automotive service advisor about where and how you drive in Little Rock. Should you change your oil closer to the regular schedule, or the severe service schedule? You need to make the call.

Let me give you an example of this. Some newer trucks have an oil change indicator. It has a sophisticated computer algorithm that tracks number of cold starts, engine temperature, RPMs, mileage, and many more variables to come up with a recommendation for when to change the oil.

Depending on driving conditions, the indicator in one test vehicle came on at anywhere from 2,500 miles to almost 7,000 miles. It’s typically just over 4,000 miles. Clearer sometimes, we’re driving easy miles that are easy on the truck – like a long road trip. Sometimes, we’re driving hard Arkansas miles – like towing a heavy trailer or a lot of around town driving. But, usually, it’s a combination of both.

Once again, it’s up to you to make the call as to when to change your oil at Parkway Automotive to protect your truck engine. Another place where Arkansas car owners can go wrong is with the type of oil they use. More and more new cars are coming to Little Rock owners filled with synthetic oil. Without going into a lot of detail right now, let’s just say that synthetic oil lasts longer and is very resistant to oil sludge.

But it also costs quite a bit more, so some Little Rock people are tempted to use conventional oil for their oil changes. Now, it’s always best to use the oil recommended by your automobile manufacturer. Check your owner’s manual see if a conventional oil alternative is allowed.

But getting back to the problem, if your truck came from the factory with synthetic oil, the recommended oil change interval is for synthetic oil. If you use conventional oil, you can’t use the synthetic interval. You need to shorten it.

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All those automotive fluids can be confusing for Conway, Arkansas auto owners. Recent years have brought new grades of engine oil, types of transmission fluid, coolant, and brake fluid. The right fluid protects your vehicle and helps it perform at its best. The wrong fluid won’t work as well for Little Rock auto owners and could even cause damage.

In addition to new grades of engine oil, many trucks now leave the factory with synthetic oil. Conway, Arkansas auto owners should always use the recommended grade and type of oil in their engine.

All coolant, also called antifreeze, used to be green. Now there are several other colors of coolant sold at Parkway Automotive in Little Rock. Each type is designed to protect the cooling system components that are particular to your vehicle. The wrong stuff can void your truck cooling system warranty and could even cause engine damage.

Most passenger vehicles on Little Rock roads today use either DOT 3, DOT 4 or DOT 5 brake fluid. Your truck power brake system is specifically designed to use ONE of these types – you need the right one. Higher numbers do not necessarily mean a higher, upgraded fluid.

Now, the important thing is knowing that your vehicle requires specific grades and types of fluids and that using the right fluids is good and using the wrong ones is bad. Once you’ve got that down, it’s easy to remember to check with your honest Parkway Automotive technician or truck owner’s manual to find out which automotive fluids to use.

Give us a call

Parkway Automotive
501-821-6111
708 Kirk Road
Little Rock, Arkansas 72223

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If you’ve walked through the automotive fluids of an auto parts store in Conway, Arkansas, you’ll know how overwhelming the sheer number of products available can be. How do you know what’s right for your vehicle?

As you know, these fluids all serve a function in making your car run as you drive around the Conway, Arkansas area. Your vehicle manufacturer has specified a particular type of fluid for every system from the motor, to the cooling system, brake fluid and so on. When you realize that not every variation is applicable to your vehicle, the task becomes more manageable.

First let’s talk about why there are so many varieties. Starting with motor oil, we see that manufacturers match the properties of a particular weight or type of oil with the design needs of the engine. For example, engines with sophisticated valve trains often require a thinner weight of oil.

Some vehicles around Conway, Arkansas come from the factory filled with synthetic oil and the recommendation to use it for life. The safe bet is to always use what the factory recommends. The recommendation is what’s been proven to work in function and durability tests. The recommended oil is also a factor in determining oil change interval schedules.

A good quality oil has more additives that are engineered to clean and protect the engine. They cost a bit more, but are worth the extra protection. If you buy budget oil, you might want to consider shortening your oil change interval.

Sometimes fluids are developed specifically to meet the needs of a particular family of engines. An example would be coolant. Because of the different materials used to build the cooling system, the coolant has to be formulated to protect those parts, which vary from manufacturer to manufacturer, from corrosion. We’ve seen special coolant in Conway, Arkansas for General Motors, Volkswagen, Chrysler and others.

The same is true of transmission fluid and brake fluid in recent years.

The really good news is that your Conway, Arkansas service center has databases that tell them the recommended fluids for your vehicle. This takes all the guess work out. If you have some special needs, like a higher mileage engine or want enhanced performance, ask your service advisor for upgrades or additives that’ll meet your needs while being consistent with the manufacturer’s recommendations.

Of course, your full-service oil change will top off your fluids. But it’s a good idea to have some of everything at home in case you need to top something off yourself or to take on a trip. Ask your Conway, Arkansas service advisor at Parkway Automotive or check your owner’s manual for fluid specifications.

It’s important to know that there are national warranty laws that say that a manufacturer cannot require you to use their brand of fluid to maintain your warranty. That said, there are two things that may affect your warranty.

Using the wrong type of fluid may void the warranty. Going back to radiator coolant, the correct type protects against corrosion and the wrong type will not. So it’s important to be right.

Also some warranty protections are conditioned on taking care of scheduled preventive maintenance. Please review your warranty if you have questions.

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Today’s Parkway Automotive post focuses on using the proper fluids for your vehicle. Big advances in automotive technology have lead to the development of high-tech fluids to keep pace. Some because of engineering advances and others, advances in the materials used to build truck automotive systems.

A simple example of this is the cooling system. For decades it was primarily made out of iron, steel and rubber hoses. There was one kind of coolant that protected these components from corrosion.

Now cooling system components are made with various metal alloys and plastics. These materials require different additives to protect them from corrosion. Since the materials used vary from manufacturer to manufacturer, we now have a number of different kinds of coolant.

And it’s important that Cabot, Arkansas car owners use the right coolant. If you pour in the wrong kind, it won’t protect the cooling system and may even void the warranty. Check your truck owner’s manual. Of course, your Parkway Automotive advisor will know the proper coolant to use.

Brake fluid is confusing for some Cabot, Arkansas drivers. Back when we opened shop 13 years ago, most vehicles used Dot 3 brake fluid. Now we have Dot 4 and Dot 5. Some Cabot, Arkansas people mistakenly think the higher numbers are an upgrade. You know, if 3 is good then 4 must be better. That’s not how it works. They are different formulations to meet the demands of differences in brake systems. Only one of them is recommended for your truck.

Transmission fluid is the same thing. For decades there were two basic types of tranny fluid used at Parkway Automotive: friction modified or not. With the tremendous engineering advances in truck automatic transmissions, there have been several new types of fluids developed to protect and lubricate them.

Nowhere are the advances in automotive fluids more evident to Cabot, Arkansas motorists and Parkway Automotive professionals than in motor oil. Many new weights and formulations have been created to meet the demands of today’s modern truck engine design. Modern engines have more parts and much tighter tolerances. Every year, engines make more power and get better fuel economy. And with all the complication and sophistication, they still have to be durable.

That’s where the new grades of engine oil come in. They have to be formulated to lubricate, protect and clean all of those truck engine parts, big and little. The oil has to be thin enough to get into little passages, yet resistant to vaporization.

At Parkway Automotive, we believe that in some ways modern automotive fluids are just as great feats of engineering as the new engines. Because weights of oil and types of coolant and transmission fluid are so carefully matched to the vehicle, take care to always use the proper fluid if you are topping off at home.

Check your truck owner’s manual or ask your Cabot, Arkansas service advisor. The wrong fluid can cause damage. If you drive a car or truck with 75,000 miles or more, consider high mileage formulations. These fluids contain extra detergent to clean dirtier older engines as well as additives to condition seals and gaskets. That’ll help prevent leaks. Always be sure that the high mileage fluid is the same weight or type of fluid recommended for your vehicle.

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Today Parkway Automotive is talking about the proper fluids for your vehicle. It’s become more complicated with changes in automotive design and manufacturing. It’s not that people in Arkansas are confused as much as they don’t realize how much things have changed in recent years.

If you have questions about the fluids in your vehicle, please don’t hesitate to stop by Parkway Automotive. You can find us on 708 Kirk Road in Little Rock, Arkansas 72223.
Just give us a call at 501-821-6111

Let’s take engine oil. Twenty or thirty years ago, there were just a handful of different weights of oil. The weight of an oil is a scientific measure of its properties, particularly its viscosity or thickness.

It was common in those days to use a lighter weight oil in the winter when it’s cold outside. That way the oil would be able to splash around inside the engine and protect the parts before it was fully warmed up. And a heavier weight oil would be used in the summer. The thicker oil wouldn’t thin out too much in the summer heat and vaporize in the engine.

Modern valve trains have become very complicated with more moving parts and small passages than ever before. The valve train is in the top of the engine, so when the car has been turned off for a while, the oil tends to run down to lower areas and the valve train parts are vulnerable at start-up, before the oil starts circulating.

So new weights of oil have been introduced to meet the engineering specifications of these newer engines.

Manufacturers are recommending specific weights of oil. The recommendation is often printed on the oil fill cap. It’s certainly in the owner’s manual. Of course, your Little Rock Arkansas auto service center can look it up for you.

It’s more important than ever to have the correct weight of oil. The wrong weight could actually harm the engine.

Other fluids are also becoming more sophisticated. In the last few years new types of transmission, power brake fluid and coolant have all been introduced for some of the same reasons as for engine oil.

In addition, vehicle manufacturers are now using a wider variety of materials in these systems. Looking at the cooling system as an example, it used to be that the parts were all made out of steel or iron and the hoses were rubber. Now, some parts are plastic, aluminum or other materials.

So the anti-corrosion additives contained in the coolant, or anti-freeze, need to be different in order to protect the different materials used to make the cooling system. If you use the wrong coolant that wasn’t formulated to protect your plastic cooling system parts, they could become corroded and fail. And if you’re using the wrong coolant, your cooling system won’t be covered under warrantee. So it’s important to use the right coolant and to not mix different types.

Your owner’s manual or your Little Rock Arkansas service advisor at Parkway Automotive can make sure you’re using the right type. You may have heard of universal coolant. Universal, or global, coolant can be added to other types without harmful reactions. That’s OK for an emergency top off, but following your manufacturer’s recommendation for your truck or other auto type is always a safe bet.

In the area of brake fluid, there are a couple of new formulations. It’s important to remember that the new ones aren’t better than the old ones. They’re just different formulations for different vehicles. So if your vehicle calls for DOT 3, using DOT 4 or DOT 5 is not an upgrade. Use the recommended formula.

There are fluid formulations for vehicles with higher mileage. These are special engine oil, transmission fluid, and so on that contain additives to condition and restore seals and gaskets in older engines.

They’re fine to use as long as they’re a variant of the proper fluid. In other words you can use a high mileage engine oil as long as it’s also the correct weight recommended by the manufacturer. Same goes for transmission fluid; as long as it’s the right type for your transmission.

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Today Parkway Automotive is talking about the proper fluids for your vehicle. It’s become more complicated with changes in automotive design and manufacturing. It’s not that people in Arkansas are confused as much as they don’t realize how much things have changed in recent years.

If you have questions about the fluids in your vehicle, please don’t hesitate to stop by Parkway Automotive. You can find us on 708 Kirk Road in Little Rock, Arkansas 72223.
Just give us a call at 501-821-6111

Let’s take engine oil. Twenty or thirty years ago, there were just a handful of different weights of oil. The weight of an oil is a scientific measure of its properties, particularly its viscosity or thickness.

It was common in those days to use a lighter weight oil in the winter when it’s cold outside. That way the oil would be able to splash around inside the engine and protect the parts before it was fully warmed up. And a heavier weight oil would be used in the summer. The thicker oil wouldn’t thin out too much in the summer heat and vaporize in the engine.

Modern valve trains have become very complicated with more moving parts and small passages than ever before. The valve train is in the top of the engine, so when the car has been turned off for a while, the oil tends to run down to lower areas and the valve train parts are vulnerable at start-up, before the oil starts circulating.

So new weights of oil have been introduced to meet the engineering specifications of these newer engines.

Manufacturers are recommending specific weights of oil. The recommendation is often printed on the oil fill cap. It’s certainly in the owner’s manual. Of course, your Little Rock Arkansas auto service center can look it up for you.

It’s more important than ever to have the correct weight of oil. The wrong weight could actually harm the engine.

Other fluids are also becoming more sophisticated. In the last few years new types of transmission, power brake fluid and coolant have all been introduced for some of the same reasons as for engine oil.

In addition, vehicle manufacturers are now using a wider variety of materials in these systems. Looking at the cooling system as an example, it used to be that the parts were all made out of steel or iron and the hoses were rubber. Now, some parts are plastic, aluminum or other materials.

So the anti-corrosion additives contained in the coolant, or anti-freeze, need to be different in order to protect the different materials used to make the cooling system. If you use the wrong coolant that wasn’t formulated to protect your plastic cooling system parts, they could become corroded and fail. And if you’re using the wrong coolant, your cooling system won’t be covered under warrantee. So it’s important to use the right coolant and to not mix different types.

Your owner’s manual or your Little Rock Arkansas service advisor at Parkway Automotive can make sure you’re using the right type. You may have heard of universal coolant. Universal, or global, coolant can be added to other types without harmful reactions. That’s OK for an emergency top off, but following your manufacturer’s recommendation for your truck or other auto type is always a safe bet.

In the area of brake fluid, there are a couple of new formulations. It’s important to remember that the new ones aren’t better than the old ones. They’re just different formulations for different vehicles. So if your vehicle calls for DOT 3, using DOT 4 or DOT 5 is not an upgrade. Use the recommended formula.

There are fluid formulations for vehicles with higher mileage. These are special engine oil, transmission fluid, and so on that contain additives to condition and restore seals and gaskets in older engines.

They’re fine to use as long as they’re a variant of the proper fluid. In other words you can use a high mileage engine oil as long as it’s also the correct weight recommended by the manufacturer. Same goes for transmission fluid; as long as it’s the right type for your transmission.

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Today Parkway Automotive is talking about the proper fluids for your vehicle. It’s become more complicated with changes in automotive design and manufacturing. It’s not that people in Arkansas are confused as much as they don’t realize how much things have changed in recent years.

If you have questions about the fluids in your vehicle, please don’t hesitate to stop by Parkway Automotive. You can find us on 708 Kirk Road in Little Rock, Arkansas 72223.
Just give us a call at 501-821-6111

Let’s take engine oil. Twenty or thirty years ago, there were just a handful of different weights of oil. The weight of an oil is a scientific measure of its properties, particularly its viscosity or thickness.

It was common in those days to use a lighter weight oil in the winter when it’s cold outside. That way the oil would be able to splash around inside the engine and protect the parts before it was fully warmed up. And a heavier weight oil would be used in the summer. The thicker oil wouldn’t thin out too much in the summer heat and vaporize in the engine.

Modern valve trains have become very complicated with more moving parts and small passages than ever before. The valve train is in the top of the engine, so when the car has been turned off for a while, the oil tends to run down to lower areas and the valve train parts are vulnerable at start-up, before the oil starts circulating.

So new weights of oil have been introduced to meet the engineering specifications of these newer engines.

Manufacturers are recommending specific weights of oil. The recommendation is often printed on the oil fill cap. It’s certainly in the owner’s manual. Of course, your Little Rock Arkansas auto service center can look it up for you.

It’s more important than ever to have the correct weight of oil. The wrong weight could actually harm the engine.

Other fluids are also becoming more sophisticated. In the last few years new types of transmission, power brake fluid and coolant have all been introduced for some of the same reasons as for engine oil.

In addition, vehicle manufacturers are now using a wider variety of materials in these systems. Looking at the cooling system as an example, it used to be that the parts were all made out of steel or iron and the hoses were rubber. Now, some parts are plastic, aluminum or other materials.

So the anti-corrosion additives contained in the coolant, or anti-freeze, need to be different in order to protect the different materials used to make the cooling system. If you use the wrong coolant that wasn’t formulated to protect your plastic cooling system parts, they could become corroded and fail. And if you’re using the wrong coolant, your cooling system won’t be covered under warrantee. So it’s important to use the right coolant and to not mix different types.

Your owner’s manual or your Little Rock Arkansas service advisor at Parkway Automotive can make sure you’re using the right type. You may have heard of universal coolant. Universal, or global, coolant can be added to other types without harmful reactions. That’s OK for an emergency top off, but following your manufacturer’s recommendation for your truck or other auto type is always a safe bet.

In the area of brake fluid, there are a couple of new formulations. It’s important to remember that the new ones aren’t better than the old ones. They’re just different formulations for different vehicles. So if your vehicle calls for DOT 3, using DOT 4 or DOT 5 is not an upgrade. Use the recommended formula.

There are fluid formulations for vehicles with higher mileage. These are special engine oil, transmission fluid, and so on that contain additives to condition and restore seals and gaskets in older engines.

They’re fine to use as long as they’re a variant of the proper fluid. In other words you can use a high mileage engine oil as long as it’s also the correct weight recommended by the manufacturer. Same goes for transmission fluid; as long as it’s the right type for your transmission.

Share It

Today Parkway Automotive is talking about the proper fluids for your vehicle. It’s become more complicated with changes in automotive design and manufacturing. It’s not that people in Arkansas are confused as much as they don’t realize how much things have changed in recent years.

If you have questions about the fluids in your vehicle, please don’t hesitate to stop by Parkway Automotive. You can find us on 708 Kirk Road in Little Rock, Arkansas 72223.
Just give us a call at 501-821-6111

Let’s take engine oil. Twenty or thirty years ago, there were just a handful of different weights of oil. The weight of an oil is a scientific measure of its properties, particularly its viscosity or thickness.

It was common in those days to use a lighter weight oil in the winter when it’s cold outside. That way the oil would be able to splash around inside the engine and protect the parts before it was fully warmed up. And a heavier weight oil would be used in the summer. The thicker oil wouldn’t thin out too much in the summer heat and vaporize in the engine.

Modern valve trains have become very complicated with more moving parts and small passages than ever before. The valve train is in the top of the engine, so when the car has been turned off for a while, the oil tends to run down to lower areas and the valve train parts are vulnerable at start-up, before the oil starts circulating.

So new weights of oil have been introduced to meet the engineering specifications of these newer engines.

Manufacturers are recommending specific weights of oil. The recommendation is often printed on the oil fill cap. It’s certainly in the owner’s manual. Of course, your Little Rock Arkansas auto service center can look it up for you.

It’s more important than ever to have the correct weight of oil. The wrong weight could actually harm the engine.

Other fluids are also becoming more sophisticated. In the last few years new types of transmission, power brake fluid and coolant have all been introduced for some of the same reasons as for engine oil.

In addition, vehicle manufacturers are now using a wider variety of materials in these systems. Looking at the cooling system as an example, it used to be that the parts were all made out of steel or iron and the hoses were rubber. Now, some parts are plastic, aluminum or other materials.

So the anti-corrosion additives contained in the coolant, or anti-freeze, need to be different in order to protect the different materials used to make the cooling system. If you use the wrong coolant that wasn’t formulated to protect your plastic cooling system parts, they could become corroded and fail. And if you’re using the wrong coolant, your cooling system won’t be covered under warrantee. So it’s important to use the right coolant and to not mix different types.

Your owner’s manual or your Little Rock Arkansas service advisor at Parkway Automotive can make sure you’re using the right type. You may have heard of universal coolant. Universal, or global, coolant can be added to other types without harmful reactions. That’s OK for an emergency top off, but following your manufacturer’s recommendation for your truck or other auto type is always a safe bet.

In the area of brake fluid, there are a couple of new formulations. It’s important to remember that the new ones aren’t better than the old ones. They’re just different formulations for different vehicles. So if your vehicle calls for DOT 3, using DOT 4 or DOT 5 is not an upgrade. Use the recommended formula.

There are fluid formulations for vehicles with higher mileage. These are special engine oil, transmission fluid, and so on that contain additives to condition and restore seals and gaskets in older engines.

They’re fine to use as long as they’re a variant of the proper fluid. In other words you can use a high mileage engine oil as long as it’s also the correct weight recommended by the manufacturer. Same goes for transmission fluid; as long as it’s the right type for your transmission.

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