Hello everyone, i just got some new wild peak at 2's LT245/70r/17, E/10 load range, and the max psi on them is 80 but i don't haul much. what would the ideal psi be for them for no extra load. my door jamb says 33 psi but these aren't OEM. TIA

 

This comes up a lot and always has confused me as well, Sidewall rating or vehicle rating? I used to go with what the tire said, but now I go by what the door sticker says, regardless of tire size.

 

Have you noticed difference in tread wear?

 

Not really. I rotate every 6k miles for what it's worth.

 

the way I have done it (was taught by an old school tire guy, and confirmed by goodyear and firestone engineer as best way) is put some baby powder on the ground in front of each tire, and SLOWLY roll through it, look at the tread pattern, should be the same all the way across, if light in middle raise pressure, if on edges lower it. I had a car that all 4 tires needed a different pressure. You just repeat until it looks good.

 

Easier for me to use a tire pressure gauge but whatever works for you.

 

after replacing about 100 sets of tires on cars that got ruined for too low a pressure (factory put wrong label on them) I learned where to set it, and use that to get my future pressures (aka you do my trick once per set of tires). If you change load rating of the tires they will need a different pressure than the oe ones.

 

Most people say use the value on the tire but they are wrong. It is by the door sticker. What is on the tire is maximum pressure and weight the tire can safely carry, so unless you have your vehicle loaded to the max, you do not need to put in what the tire says. I have owned almost 100 vehicles in my life and never had a premature tire wear related issue by using the door sticker rating and a good tire pressure gauge.

 

I have replaced many flat spotted tires (working for dealerships, and tire manufacturers) the door is a great start for factory load range tires, if done right (more than once car manufacturers have gotten them wrong) I use the baby powder when I get new tires, and record the pressure, and go from there. Last time it took me 10 minutes to do and I got 80,000 miles out of a 30,000 mile tire (and the door sticker was within 5 psi on the first set, current set is 10 psi higher, but they are cheap korean tires with a heavy load rating)

 

Keeping the correct air pressure in your tires helps your tires last longer,helps your car handle better and safer,and helps you save Keep in mind that many vehicles have different tire pressures on the front and rear axle.Having the correct tire pressure is extremely important for getting good gas mileage.




.............................