The modern serpentine belt is made of EPDM, which is a synthetic rubber. There are two problems with belt dressing on these.

There's nothing quite like being the smartest one in the garage. You know, like when you hear a squeal under the hood and your buddies are jumping immediately to nonsense like "recommended maintenance ...

Belt dressings? Yes or no? I heard on your radio show this week not to spray belt dressings on serpentine belts. I recently was told to use belt dressings on my serpentine belt by a mechanic. He said ...

However, as one mechanic will tell you, there’s one car part you should never, ever use WD-40 on. The advice comes from creator Scotty Kilmer (@scottymechanic.us). His Sept. 3 video has gotten more ...

It's somewhat common to hear a loud squeal from under the hood of your car, even if it's in otherwise good running order. That high-pitched sound is annoying, and could signal potentially expensive ...