tire pressure vs fuel economy
Hi all, In a recent thread, I asked about tire pressure vs ride. I found I could go as low as 45 psi on the front tires--but decided to go for 55 psi. Ride was improved on the highway. Steering ...
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I gotta put in a plug for rig weighing, not just on a CAT-type scale, but by wheel position. Had it done this summer and it was a real eye-opener. Even though I was near my GVWR, turns out I was well-UNDER for each axle. By knowing the actual weight at each wheel position, I was able to LOWER the pressure in my tires from sidewall max of 80psi ( which I incorrectly thought I needed based on overall vehicle weight) to 60 in the fronts and 65 in the rear duallys. End result will be better ride comfort and increased tire life. Actual tire psi's are based on each axle weight in addition to the tire manufacturers weight chart. ST
