John Paul, AAA Northeast's Car Doctor, answers a question from a reader curious about using Marvel Mystery Oil. AP Photo/David Zalubowski ...

Many of us try to eat right and have a well-balanced diet. We eat good foods and try to keep ourselves in good shape. Most of us benefit from taking vitamin supplements to boost certain areas of our ...

Engine additives are to cars what protein powders are to gym-goers: passionately praised by some as essential for performance, dismissed by others as mere hype or snake oil. Although modern synthetic ...

When it comes to taking care of our cars, we often find ourselves standing in the auto parts aisle, staring at a dizzying array of oil additives. Some promise to boost your engine’s performance, while ...