Is your engine toast? In a word? Nah. Despite decades of online chatter equating conventional oil and synthetic oil with matter and antimatter, they are both, at the end of the day, petroleum ...

The French motor oil company Motul may be best known ... if their vehicle goes from under 75,000 miles to over 300,000. Shell's Rotella line of synthetic oils is one of the most popular diesel ...

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

“As engine technology and fuel technology have evolved, the environment in the crankcase has changed,” says Stede Granger, Shell Lubricants ... an SAE 40 oil. That is a fully synthetic ...