What’s the difference between road car and race car (like NASCAR) oil? Sponsored by Mobil 1 motor oil. Learn more about Mobil ...

Some automotive enthusiasts will argue that conventional oil performs the same as synthetic oil, adding that synthetic oil is simply marketing. Generally speaking however, synthetic oil does offer ...

For example, the price difference between a five quart bottle of Superior Protection Full Synthetic 5w30 oil from Super Tech and a comparable product from Mobil 1 is almost $10. Walmart's best ...