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Discussion Starter #1
how much air pressure should i put in 30 series tires? i have 285/30/18 and it start losing air pressure slowly as soon as i pump air pressure up to 40psi. It pretty much stay the same until it reach 30psi but still drop very very slowly. IS this normal?
 
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come on, i know i am not the only 1 w/ 30series tires here
 
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