Tire pressure
07-21-2017, 05:53 AM
#2
Senior Member
Does the sticker in he driver's side door frame match the gas cap sticker? Mine does not. I am using the 39 recommend on the driver's door. 39 all around.
07-21-2017, 08:55 AM
#3
It depends on a lot of things... what you see on the door and gas lid are really just recommended pressures. Try playing around with it, till you get to what you are comfortable with while taking into consideration tire brand, wheel construction, suspension (even stock), climate, load, the roads you take and your driving habits.
i'm on 20's, cast wheels, h&r springs, 245/30f 275/30r continental dws, in CA. I found the best pressures for me are 38f/36r (cold). Haven't cracked a rim yet (thank god). None of my passengers have complained about the ride. And still very responsive taking corners. The highest that its gone this summer is 42f 39r, after driving around. This works for me, but i'm sure under normal circumstances it won't vary much, maybe just a pound or two.
Hope this helps.
i'm on 20's, cast wheels, h&r springs, 245/30f 275/30r continental dws, in CA. I found the best pressures for me are 38f/36r (cold). Haven't cracked a rim yet (thank god). None of my passengers have complained about the ride. And still very responsive taking corners. The highest that its gone this summer is 42f 39r, after driving around. This works for me, but i'm sure under normal circumstances it won't vary much, maybe just a pound or two.
Hope this helps.
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equetefue (07-21-2017)
07-21-2017, 10:14 AM
#4
It depends on a lot of things... what you see on the door and gas lid are really just recommended pressures. Try playing around with it, till you get to what you are comfortable with while taking into consideration tire brand, wheel construction, suspension (even stock), climate, load, the roads you take and your driving habits.
i'm on 20's, cast wheels, h&r springs, 245/30f 275/30r continental dws, in CA. I found the best pressures for me are 38f/36r (cold). Haven't cracked a rim yet (thank god). None of my passengers have complained about the ride. And still very responsive taking corners. The highest that its gone this summer is 42f 39r, after driving around. This works for me, but i'm sure under normal circumstances it won't vary much, maybe just a pound or two.
Hope this helps.
i'm on 20's, cast wheels, h&r springs, 245/30f 275/30r continental dws, in CA. I found the best pressures for me are 38f/36r (cold). Haven't cracked a rim yet (thank god). None of my passengers have complained about the ride. And still very responsive taking corners. The highest that its gone this summer is 42f 39r, after driving around. This works for me, but i'm sure under normal circumstances it won't vary much, maybe just a pound or two.
Hope this helps.
Think it's perfect and so far the tires are wearing really nice.
I'd go for 40 (hot) all around and adjust to your liking from there.
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YoungLane (07-21-2017)
07-22-2017, 06:37 AM
#5
Senior Member
I have tried a number of different tire pressure combinations and did not notice much if any difference. Stiff short sidewalks are difficult to overcome.
07-22-2017, 08:55 AM
#6
I expirmented a bit myself and found similar results as above. 36/33 is what is recommended but I think it's for easy driving. Driving aggressively I was rolling too far on sidewalls. I checked with chalk. I settled on 38/37 cold. I went a bit higher in the rear than needed so I could induce a slight oversteer. Feels a bit more fun. I m coming from a mustang and miss the loose rear end.
this is on non run flat summer tires.
this is on non run flat summer tires.
Last edited by Al.B.43; 07-22-2017 at 09:01 AM.
08-04-2017, 09:17 AM
#7
running the p-zero run flats on 19s - i'm doing 36 cold, which gets to 39/40 hot. wonder if i should bump em up a bit?
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08-04-2017, 10:04 AM
#9
Senior Member
After the dealer replaced one of my 19" RFTs all mine were also,inflated to 42. Will ask my SA if that is the new recommended pressure m
08-04-2017, 10:16 AM
#10
Don't trust tha dealer sets it correctly. The gas cap is the pressure you should fill. My sedan says 36f 33r. That's fine for easy driving. I drive a bit aggressive and hit corners fast. I was getting sidewall rollover. I settled on 38/36. All pressure cold first thing in the morning. I experimented with chalk to see how much sidewall rollover I was getting.
08-04-2017, 10:24 AM
#11
Senior Member
Don't trust tha dealer sets it correctly. The gas cap is the pressure you should fill. My sedan says 36f 33r. That's fine for easy driving. I drive a bit aggressive and hit corners fast. I was getting sidewall rollover. I settled on 38/36. All pressure cold first thing in the morning. I experimented with chalk to see how much sidewall rollover I was getting.
BTW - gas cap is not always authoritative. Always good to check inside the driver's door frame.
