Zinc additives are fairly common in oil, especially when treating a classic or high milage engine, but what does the additive ...

Let’s explain all of those confusing numbers, letters and terms to help you choose the right oil for your car.

Over the years, however, engines and emissions standards changed and motor oils changed with them. Nowadays, motor oils — both synthetic ... to the amount of zinc in the oil, and even then ...

There’s more to it than just synthetic ... yet still demand a high level of protection for their vehicle’s powertrain. In fact, the GTX line contains all three motor oil types: fully synthetic ...