Quote:
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.