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How to Know When to Change Your Oil At Lawrence Automotive Diagnostics

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

The old mantra “change your oil every three months or three thousand miles, whichever comes first” once applied to every vehicle in your garage. 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.

Lawrence people are like everybody else, they have a tendency to put off all the oil changes to the schedule of the vehicle with the longest interval. Of course, that can lead to problems. For example, recently four of the world’s largest auto manufacturers shortened the published intervals for several of their engines. They originally published intervals that extended out to a much as 8,000 miles.

In real world Lawrence 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 minivan small engine passages so the oil wouldn’t flow to some parts of the engine. This resulted in engine damage. We see it from time to time at Lawrence Automotive Diagnostics.

The 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 problem. With longer oil change intervals, it’s extremely important 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 Kansas, short trips, drive in dusty or polluted Lawrence conditions, hot or cold weather, or haul heavy loads, you’re driving in severe service conditions. Your Lawrence Automotive Diagnostics advisor can help you evaluate which schedule to follow.

So check your minivan owner’s manual or talk with your Lawrence service advisor about where and how you drive. Should you be changing 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 minivans 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. What this tells us is that sometimes, we’re driving easy miles that are easy on the minivan – like a long road trip. Sometimes, we’re driving hard Kansas miles – like towing a 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 Lawrence Automotive Diagnostics to protect your minivan engine. Another place where Kansas drivers can go wrong is with the type of oil they use. More and more new cars are coming to Lawrence 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 Lawrence people are tempted to use conventional oil for their oil changes. Now, it’s always best to use the oil recommended by your manufacturer. Check your owner’s manual see if a conventional oil alternative is allowed.

But getting back to the problem, if your minivan 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.

Proper Fluids for Your Vehicle

We would like to give you an update on some of the things happening in automotive fluids. You know, cars are becoming more sophisticated everyday - and fluids such as, oil, coolant and transmission fluid are becoming more specialized at about the same pace.

The do-it-yourselfer has to be pretty careful so that they do not actually harm their vehicle with the wrong type of fluid. That is why so many Kansas car owners rely on the advice of their service consultant to not only get the correct family of fluids, but to suggest the formulation that is best for their car and the way they drive.

Let's start with engine oil. If you have been paying attention, you will have noticed a number of new oil weights on the scene in the last several years. Modern engines are built to much tighter tolerances and have very complicated valve trains. The oil must be thin enough to lubricate complicated parts when the engine is cold. The weight of an oil is expressed in terms like 20-W-50 or 5-W-30. Manufacturers recommend the weight of oil for each vehicle they make. The recommendation is based on engine design. Your Lawrence service center will know what weight your manufacturer recommends - and it's important to follow those recommendations. A service adviser at Lawrence Automotive Diagnostics can also offer suggestions for special formulations and can explain conventional and synthetic oils.

Antifreeze, or engine coolant, is another area that has become more complicated. For a long time, manufacturers only called for a couple of different types of coolant. Now there are several different formulations that are needed because of the different materials that manufacturers are using to build the cooling system. Using the wrong type of coolant can actually void your warranty, so you want to get that right.

Transmission fluid is beginning to be specialized as well. New transmission designs have particular requirements that mandate the use of specific formulations. Recently, new, somewhat confusing, standards for brake fluid have also been released.

Not too long ago, there was a good chance that all of the vehicles at your house would use many of the same fluids. However, as automotive technology advances, the array of basic automotive fluids you need will grow. And, some of the formulations will cost a little more. Fortunately, your Lawrence service center will continue to update their training to keep pace with technology so that you'll get the right fluids your car needs. It's all part of the commitment your service center makes to your driving peace of mind.

Proper Fluids for Your Vehicle

We would like to give you an update on some of the things happening in automotive fluids. You know, cars are becoming more sophisticated everyday - and fluids such as, oil, coolant and transmission fluid are becoming more specialized at about the same pace.

The do-it-yourselfer has to be pretty careful so that they do not actually harm their vehicle with the wrong type of fluid. That is why so many Kansas car owners rely on the advice of their service consultant to not only get the correct family of fluids, but to suggest the formulation that is best for their car and the way they drive.

Let's start with engine oil. If you have been paying attention, you will have noticed a number of new oil weights on the scene in the last several years. Modern engines are built to much tighter tolerances and have very complicated valve trains. The oil must be thin enough to lubricate complicated parts when the engine is cold. The weight of an oil is expressed in terms like 20-W-50 or 5-W-30. Manufacturers recommend the weight of oil for each vehicle they make. The recommendation is based on engine design. Your Lawrence service center will know what weight your manufacturer recommends - and it's important to follow those recommendations. A service adviser at Lawrence Automotive Diagnostics can also offer suggestions for special formulations and can explain conventional and synthetic oils.

Antifreeze, or engine coolant, is another area that has become more complicated. For a long time, manufacturers only called for a couple of different types of coolant. Now there are several different formulations that are needed because of the different materials that manufacturers are using to build the cooling system. Using the wrong type of coolant can actually void your warranty, so you want to get that right.

Transmission fluid is beginning to be specialized as well. New transmission designs have particular requirements that mandate the use of specific formulations. Recently, new, somewhat confusing, standards for brake fluid have also been released.

Not too long ago, there was a good chance that all of the vehicles at your house would use many of the same fluids. However, as automotive technology advances, the array of basic automotive fluids you need will grow. And, some of the formulations will cost a little more. Fortunately, your Kansas City service center will continue to update their training to keep pace with technology so that you'll get the right fluids your car needs. It's all part of the commitment your service center makes to your driving peace of mind.

Synthetic Oil

If you aren’t currently using synthetic motor oil in your Lawrence vehicle, maybe now’s the time to consider it. Need more information? Well, synthetic motor oil is a substitute for petroleum based oil.

Synthetic oil doesn’t gel or gum-up like petroleum based oil and it doesn’t vaporize as easily. It protects better in severe driving conditions like stop and go driving around Lawrence, as well as in very hot or very cold conditions. More and more new vehicles are being delivered with full synthetic motor oil; with the recommendation to use synthetic for the life of the vehicle.

Why is this? Synthetic motor oil maximizes engine power and fuel economy. To see why; we’d need a microscope, so we’ll have to settle for using our imaginations.

The molecules of conventional motor oil are long hydrocarbon chains. Synthetic motor oil, on the other hand, has uniform, round molecules. Which is more slippery, a pile of pencils or a pile of marbles?

Synthetic motor oil lubricates better because there’s less friction. That means better wear protection, cooler operating temperatures, more power and better fuel economy. And synthetic oil doesn’t sludge up like conventional oil, so it prevents those small oil passages from clogging up.

Some manufacturers are extending oil change intervals. The added protection of synthetic oil covers you for these longer intervals. Talk with your service advisor about how you drive and see if he thinks you can benefit from synthetic oil. Also ask about the appropriate oil change interval for synthetic, because it may very well be longer than for conventional oil.

Most of us here in Lawrence have a busy life and might occasionally miss an oil change; go ahead admit it. Since we’re not perfect, doesn’t it make sense to use a motor oil that’s got your back?

Now synthetic oil costs more. But it lasts longer, protects better and increases fuel economy. You’ll likely save money in the long run. If you’re serious about making your car last longer, start using synthetic motor oil right away.

Give us a call at 785-842-8665 to schedule an oil change, or visit us at our Lawrence Automotive Diagnostics website

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