As mentioned, tire valve stem caps are designed to protect the valve inside of the stem itself. This valve screws into the tire stem and allows you to add or remove air without deflating the ...

While you can buy personalized valve stem caps for your car, those that are solid green usually have nothing to do with aesthetics. Instead, these green caps indicate that the tires are full of ...

Phallic valve stem caps can be purchased on Amazon, Etsy, and TireCockz. If you are looking to pull off a nice little prank on a buddy, look no further. Curious to see what my suggested ads will ...

Dear Tom and Ray: I took my 2008 Audi A4 in for routine maintenance. The dealership informed me that it could not check my tire pressure because I had “aftermarket valve-stem covers.” I was ...

Tom: Those valve-stem caps your husband bought -- with the pictures of Pippa Middleton on them -- were made of some really cheap metal. And they've now rusted to the threads on your valve stems.

However, green tire valve stem caps are not usually one of the ways people do that. While you can buy personalized valve stem caps for your car, those that are solid green usually have nothing to ...