[NickD]

Tom McCahill of Mechanics Illustrated was always recommending 50 psi for tire pressure back in the 50's. Does have some negative effects, like major wear in the center of the threads, hard on your back with any kind of bump, and really rough on your suspension, especially control arms and ball joints, and far poorer traction in the snow.

I always went with the sticker values, best all around, but tend to go 10% more with the Cruze because of this crazy TPMS. Tire pressure should be check when tires are cold, but in this kind of weather with a garage temperature of 30+*F, and outdoor temps like -30*F, at 30 psi can drop to like 26 psi.

And the more you fool around with these way overpriced tire valves, the quicker you will wear them out.

 

[NickD]

Wonder if my photographic memory is over exposed at times. Bias tires as I recall weren't introduce unit the late mid 60's, 50's used narrow thread Rayon tires. And were very expensive, a set of four ran around 200 bucks. Ha, when shopping around for old cars in the 50 buck range, just looked at the tires, if they were like new, didn't care what the rest of the car looked like.

Tire pressures? 15 psi for rear farm tractor tires, 30-35 psi for practically all car tires, 60 psi for boat trailer tires, 65 psi all around for motorhome tires, bicycle, the old light weight design, 105 psi.

Could ask the question about putting 45 psi in very low profile tire as to what happens to the alloy wheel rim when hitting a pot hole.