Francisco de la Rosa IV
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Hey Guys,
Should you check tire pressure when the tires are cold or warm? I know that this could make a difference.
Thanks,
FDR
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Francisco de la Rosa IV
Life is not measured by the number of breaths you take, but by the number of moments that take your breath away.
Luck is when preparation meets opportunity!
Edited by eyetroller (11/06/09 11:24 AM)
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big G
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Ideally cold. In our setting (a shop) not always possible.
big G
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You can tell how big a person is, by what it takes to discourage them! "Hooks"
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jmvsmv
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Some tires will actually say what pressure they are supposed to be Cold or Warm right on the sidewall.
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Francisco de la Rosa IV
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Thanks Glen.
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Francisco de la Rosa IV
Life is not measured by the number of breaths you take, but by the number of moments that take your breath away.
Luck is when preparation meets opportunity!
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Francisco de la Rosa IV
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Quote:
Some tires will actually say what pressure they are supposed to be Cold or Warm right on the sidewall.
But what if those suggested pressures differ from what is says on the drivers door? I think I am suppose to go with what the door says. Or do I have it backwards?  Now I am really second guessing myself.
FDR
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Francisco de la Rosa IV
Life is not measured by the number of breaths you take, but by the number of moments that take your breath away.
Luck is when preparation meets opportunity!
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Riveratt
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Unless hauling with the vehicle fully loaded you want to disregard the sidewall. Set the tire pressure "cold". All that means is let the tires temperature stabilize after being driven. It isn't all that scientific or complicated as some make it.
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* * * * * *
Most of my life has been spent fishing.The rest of it I just wasted.
If I'm not fishing, hunting, or ATVing, you can bet I'm wishing I was!
Control your kids, not my guns!
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northstar
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Anything I have ever seen says cold.
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Northstar - Even as you have done it unto the least of my children, you have done it unto me.
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whittsend
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MNF/dealer usually recommends door numbers for best preformance/handling.
Although, those numbers are usually lower (in my experience) than the tire max psi rating... usually you might get better MPG with more psi, but worse "road gripping" ability. Is this generally correct, guys?
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Do what you want. This is only an opinion. I'm not here to offer advice or recommendations in any professional capacity whatsoever.
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Jared Rypka-Hauer
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Honestly I just run car and/or light truck tires at 35 PSI. I run the tires in my Mustang at 30 on the road because it softens the ride and at 32-35 on the autocross track (depends on the day, hot and sunny == higher pressure) because you get better hard-surface traction and control with a higher pressure.
Honestly, I can't remember the last time I've tried to find the recommended pressures on either the door pillar or the tires. 
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Whoever first said "Better a bad day fishing than a good day at work" is the wisest person who ever lived.
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Suzuki
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Cold. Realistically all the same pressure is most important.
Forget what's on the tire. Check the inside of driver door and use that as a starting point. Watch how they wear and adjust from there. I run my truck tires at 38. Back in my youth when I knew nothing I ran a set of TA Radials at the max 50 that was on the tire. Hard ride but dam they lasted a long time. You'll get better mileage with higher pressures but sacrifice some ride and sometimes offroad traction. Just dont underinflate.
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Mike
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joshbjork
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You guys have it figured out. Too much air just wears the middle of the tread out.
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northstar
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We have missed one important thing in this discussion. Tire application has a huge impact on tire pressure. Those little boat trailer tires the size of a bowling ball usually run at least 60 and maybe 90. Check the side wall. My one ton pickup takes 80 and the 5th wheel trailer 50.
Also those little tires will blow up like a cannon shot if they are under inflated.
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Northstar - Even as you have done it unto the least of my children, you have done it unto me.
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Tire pressure?
