Is it OK to use full synthetic oil in older cars?

Yes, you can use synthetic oil in your classic car. Synthetic oils are composed of chemically engineered molecules designed to provide higher performance and better protection for your engine than conventional oils, which are derived from crude oil without significant intervention from chemical engineers.

Will high mileage oil hurt a new car?

Using a high-mileage oil in a new vehicle would be ill-advised, since no manufacturer recommends this type of oil for a new vehicle. Would it harm your engine? Most likely not, but it would be better to adhere to what is specified in the owner’s manual, at least until the warranty has expired.

What is the difference between full synthetic and high mileage oil?

High Mileage with MaxLife™ Technology is created using a blend of natural and synthetic oils as its foundation, while Full synthetic High Mileage with Maxlife™ Technology uses an even more robust base of entirely synthetic oil. Either way, they contain similar additives to address the problems related to wear.

Will synthetic oil hurt my car?

Answer. Synthetic oils typically provide better protection than conventional oils, but switching back and forth between full synthetic and conventional oil will not damage the engine.

Can I mix high mileage oil with regular?

Yes. There is no danger mixing synthetic and conventional motor oil. However, conventional oil will detract from the superior performance of synthetic oil and reduce its benefits.

Can you mix high mileage oil with synthetic?

It won’t hurt anything to mix the oils, one can even mix synthetic with non-synthetic.

Can you go back to regular oil after using synthetic?

You can’t switch back to conventional oil: Once you switch to synthetic, you are not bound to it forever. You can switch back to conventional oil if you choose to do so and your vehicle manufacturer doesn’t recommend otherwise.