How many PSI do you run in YOUR tires?

[skyl4rk]

44psi in the tires, 44psi sidewall max.

[trikkonceptz]

I'm running 50 psi on all four corners of the xD, brand new tires too ...

I didn't realize the sidewall stated max psi as 51. (Use to seeing 44psi)

Also dam dealer had the tires filled to 28psi, no wonder they try and scam you into tires for life with them ...

[Big Dave]

During snow season (December to end of March), I used the max on the sidewalls - 80 psi

During the rest of the year, I air 'em up to 100 psi. This does not 'crown' E-rated tires.

BTW, I get more than 100,000 miles out of a set of tires doing this.

[JQmile]

Yup, 80psi here on the truck too.....too bad they don't make e-rated tires for small cars, then y'all could see how rough the ride is at that tire pressure

[mhmitszach]

35 psi in winter, but now 40 psi with max sidewall of 44. Kumo Solus KH15.

[tasdrouille]

I keep my wife's tires at max sidewall (44 psi summer/35 winter). I run 60 psi year round on my 35 psi max sidewall winters and 44 psi all seasons.

[FastPlastic]

I've got 35psi rated all-seasons, Don't remember what brand. The book says to set them at 33psi so I pushed then up to 40psi. I see a big change in how far it will coast just going from the 35 to 40psi. But you can definitely tell the difference in ride with the stiff suspension the Jeeps have.

[1337]

tasdrouille-

Have you ever had a problem running at 60 PSI? I'm considering running 55 or 60 in my tires. I bet the ride in the city would be hell, but 95% of my driving is highway, so I wouldn't mind.

[brucepick]

Originally Posted by bwilson4web

I'm a little confused by the question:

• absolute pressure - I'm running Sumitomo T4s with 51 psi front and 49 psi rear.
• relative pressure - My Sumitomo T4s are rated at maximum sidewall pressure of 51 psi so my relative pressure is 0 psi front and -2 psi rear.
• OEM pressure - Toyota recommends 32 psi for OEM tires that came with my 2003 Prius so my replacement Sumitomo T4s are running +19 psi front and +17 psi rear.

Let me suggest that one or more polls might be a more efficient way to collect the tire pressure spread. Of all metrics, I would be more interested in the 'relative pressure' compared to the maximum sidewall pressure value. But given non-USA folks use standard units, a relative percentage might be more useful and easier to deal with.

It is a good question.

Bob Wilson

You brought up an interesting point:
Some drivers want to compare tire pressure to the manufacturer's recommendation.
Others want to compare to the tire's sidewall max.

That depends on whether they (or you) think that one or either of those is an authority you want to place your trust in.

Further, the tire sidewall imprint is often much higher than the mfg. recommend. If the car came with 35 or 44 psi tires, you can buy 51 or 60 psi tires - then what's your preferred pressure? Mfg's recommendation will of course stay the same; they're saying that's what's best for the vehicle.

I'm not saying that I'd follow either. I'm running 50 psi in 44 psi tires and not scared. YMMV, as usual.

[1337]

Big Dave-

What model of tires do you run? Our '99 F-350 Diesel (basically just for snow plow duty) has some Michelins, which spec for like 70-80 psi, I think.