In most cases, this is fairly easy to feel. If the wheel opening lip is smooth, it is a good indication that body work has been done in this area. This is your cue to investigate further. You might consider placing a small magnet wrapped in a rag against the body and testing how strongly it sticks to the steel parts of the car as an indication of body filler or excessive paint. A few minutes checking might save you hundreds of dollars.
Tire changing time is a good time to inspect and replace tired or worn valve stems.
Add in big doses of sun and brake dust, and you can see why valve stems need regular inspection. New rubber stems should be installed and occasionally treated with silicone gel or spray. If you drive drive fast for extended periods or compete, protect them against centrifugal force with aluminum valve stem supports. Another option is to replace rubber stems with metal ones like Automotion's new 'invisible stems'. Back to Top 911 Oil-related FAQ 1.