low tire pressure

Sorry, I failed to mention that I am upgrading tires and wheels from 265 70 16 to 285/70/17

 

The psi at max load capacity is just that...the maximum. If those tires were on a heavier truck with a heavy load in the bed the psi would need to be adjusted higher to handle the extra weight. Since the Tacoma is a light truck you need to be somewhere around 30-36psi at no-load. My tires (e rated bfg a/t's) have a max psi of 80psi. With the weight of a canopy the chalk test shows I need to be 36psi front/ 34 back.

 

ORtoy, Thats a good bit of info. I always inflated my tires 7-10lbs below max load pressure. I will definitly do the "chalk test" on these new tires. Do you usually perform the test after driving and heating up the tires or when cold? My guess is hot because you always have an increase in air pressure as the tire warms up and you drive more with heated tires than not.

thx 00

 

good read...
http://www.nitrogentiremachine.com/proper_tire_inflation.htm