What Is a Trim Level on a Car?

So you’ve narrowed your search and you’re ready to buy the car you selected — but not so fast: You still need to decide on which trim level meets your needs. What’s that? Within a given model, most automakers offer trim levels that have varying levels of equipment, from safety […]

Is synthetic motor oil bad for old cars?

A persistent debate around synthetic motor oil is whether it can be used in old cars. In this Engineering Explained video, Jason Fenske clears things up. The video is part of a series sponsored by Mobil1, which gave Fenske access to its engineers for questions about motor oil.