I took my 2008 Audi A4 for routine maintenance. The dealership informed me that they could not check my tire pressure, because I had "aftermarket valve-stem covers." I was confident that I didn't, ...

A new tool developed by a professional trucker makes it easier to remove valve cap stems, including the difficult-to-reach stems on inner duals, and also can remove and reinstall valve cores from the ...

You topped off the air in your tires, but a few days later, you notice that one of them is low again. It could be a hole, but before you go through the hassle of searching for one or making an ...

In order for our vehicles to run smoothly and carry us to and from our various destinations, they rely on an incomprehensible number of parts. While large, well-known parts — like the engine, ...