I've always kept my wheels at between 32~35 psi. I picked up my car from the shop with my new wheels on and they were at 50psi. I deflated them to 35~36psi.

I now have 20x10.5 @275/30 and 20x9.0 @245/35. I don't know if that would be a reason why they would put so much pressure into the tire. Anyone know if their is a good reason to put so much pressure into the tires?

 

well low profile tires are rated for 50+psi. just check the sidewall.

I always drive with the max inflation values. you gain a good bit of gas milage

 

i keep my 20"s at 45 psi and my oem 18"s at 35

 

no way should the psi be at 50 COLD< imagine what its at when it gets warmed up

stick to your original psi


i have my 9.5 on 225/35 and 10.5 245/35 on 45 psi and thats because of the obvious, they are stretched

 

My tires are all 35 series and I keep them at 36 cold.

 

Why were they at 50 psi? I'll tell you, it's because they didn't check them AFTER they inflated them to seat the bead. It has happened to me many times. I check my air pressure right out in the tire shop's parking lot, I want them to know I don't trust them and it's usually with good reason.

 

i keep my fronts at about 37 and 35 rearin the colder season( Ha like we really have that in so cali) and then 36 and 34 respectively during summer months. When your tires rotate, they heat up and PSI will increase along with it. Plan for that!

 

Thank you everyone for your comments.
Texas you brought up a good point that makes sense to me. I didn't think it was good to be at 50psi.

 

I WISH I could keep my tire pressure at 40+psi...my teeth would fall out. Roads down here are FAR too screwed up to run that kinda of pressure. I run mine at 30-32psi because it's where it's mostly bearable yet not too under inflated to cause problems.

 

S b f!!!

 

Wha?

 

She Beast Foo......

 

WTF?

 

I work a wheel and tire shop and with me it all depends on the size of the tire, the make of the tires, the driving conditions that the tires will be put through, the roads, and overall the car. A performance car I normally put in between 30 to 36 in the front and 36 to 42 in the rear. If the tires are stretched I put between 40 and 45. YOU NEVER WANT TO MAX OUT A TIRE.

 

The rears are stretched. 275 on a 10.5" rim. I'll bring the pressure up to 42psi or so. Thank you Dubi. Obviously I don't want to max out my tires. Also, I don't want to risk screwing up my rims by having to low of a pressure and hitting a pothole. Obviously pot holes are detrimental but I'd like to minimize the risk