[VWNate1]

I agree you're going to want near 40 ~ 45 PSI but as mentioned, 3 to 5 PSI can make a HUGE difference in ride and more importantly handling and traction ~

Use chalk or some white paint across the tread from one side to the other then go drive it and see if the chalk / paint wears of faster in the middle or edges,if in the middle you need less pressure, if on the edges you need more pressure .

Remember : only add one or two pounds at a time and do both tires on each axle to the *exact* same pressure .

Do the rears first then the fronts, the Customer will think you're a genius and you can then make more $ setting up the proper tires pressures on anything .

Try it on your own tires and discover how much faster, er, SAFER (right) you can drive along with far longer tire life .