General rule for tire pressure?
I know the best answer is going to be "take everything to scales and check the pressure charts"....but is there a general rule of thumb if this can't be done? Thanks
Forum Discussion
acritzer wrote:VintageRacer wrote:
The manufacturer of the vehicle or trailers maximum recommended pressure. The vehicle is on the door jamb sticker usually, often the trailer is on the data sticker with the VIN. In the absence of that information, the maximum pressure on the sidewall of the tire.
Brian
I understand that. Maybe I didn't ask clearly enough.
-Is it "generally" OK to run slightly under max pressure?
-If you're loaded light you should run "this much under max"
Etc. Simple guidelines that are good rules to follow.
I read a blurb somewhere that suggested not to inflate to max.
It's OK to run less than the maximum pressure shown on the inside of the drivers door jamb if your weight is less than maximum. You can use tire pressure charts if you know your weights. If you do not know your weight pretty closely, be safe and run the the maximum pressure shown on drivers door jamb. Loaded light means different things to different folks. It may mean 90% of maximum to some and 50% of maximum to others. I don't think there is a safe rule of thumb when you don't know your weights other than Maximum shown in drivers door jamb. The other option is to weigh at CAT scale and use tire pressure charts.
