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 ...