Air pressure

[JDC]

Tires with max pressure of 50 lbs.

Anyone running higher than 32-34?

 

[ctrcbob]

Car rides hard enough with 33psi. Don't need it to ride harder.

 

[Gambler]

The dealer filled one of my tires up to 50 during delivery (it was low). You could definitely feel it, I would stick with what the door tag says.

 

[Sayantsi]

I am typically 32-33 psi. FYI max psi is not an indication of where you should set it - that is the safest pressure the tire is rated for and when you drive and hit bumps, psi spikes in the tire. The only time you'd really go above 34 psi would be with max load weight, and even then you wouldn't go above 40 psi imo. Keep in mind that as the tire heats up from use, psi will rise a bit. A tire with a cold psi of 33 can hit 38 psi when hot, for example, and the higher the psi the greater the pressure change with temps. Setting a cold tire at 50 psi could mean a blow out as a hot tire hits a bump in the road and psi spikes to 100 or so. You also don't want to go too low (28 psi or less imo) since you will not have enough pressure to support the sidewalls. This will cause the tire to deform and damage the sidewalls, which will ruin the tire.

You want a psi that is a good balance among grip, and comfort, and economy. Within a specific range, typically 30-35 psi for this car, lower psi will give you better grip and comfort, higher better economy (since less of the tire is contacting the ground). Less tire means less traction, for better or worse, so its up to you to decide what you really want from the tire - grip, comfort, mpg... ymmv - literally.

 

[JDC]

I'm playing around with increased PSI. I will let you all know if it has any marked differences (ride-n-MPG).

 

[ASHDUMP]

31psi all the way around..... stock dunlops.