Unknown Tyre Pressure
Just installed 235/75/15 Cooper AT3 tyres on a 1988 Toyota Dyna Dual Cab.
The dealer suggested running tyre pressure at 55 psi. I think this is wrong. Request suggestions.
I agree with you. The tyre pressure the dealer suggested seems like it may be the Maximum Pressure which is stamped on the tire's sidewall.TG
I am not familiar with the vehicle you mention but most vehicles carry a sticker on the driver's door post which states the recommended pressure. If not on the door post try looking inside the glove compartment door or the fuel cover door. You might also try to find an owner's manual by searching online.
Failing all the above you may try to contact Cooper Tires and ask them what is the Static Loaded Radius for your tires. When you know this number you can adjust the pressure in your tires so that the distance from the road to the center of the axle is equals the SLR they provide.
As long as that pressure is less than the Maximum Pressure which is stamped on the side of the tire, you will be fine.
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