Tire pressure question - Chevy Impala SS Forum
 
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post #1 of 10 (permalink) Old 12-06-2011, 10:17 AM Thread Starter
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Tire pressure question

I guess this question would apply to those up north, but what is an acceptable tire pressure setting for winter weather? My car is relieved of the door stickers with that information. I asked a forum member via facebook this same question and he provided me some information to include this forum amongst other websites. After spending a day or so reading, forum wise to the best of my knowledge no one has asked this question but the various websites says to stay with the factory settings.

I have 255 50 zr17 in the rear and 235 50 17 up front. What ive noticed is when i had the 235's in the rear before aquiring the 255's i had a problem traction wise when its wet outside. Since then with the 255's not so much if at all. So is it a game of physics by lowering tire pressure for better traction for the cold days? Better tires? Try to park the SS for the winter? Just looking for a little insight from those that "do" know first hand, because although we are not use to winter weather here in GA, the last couple of years have been pretty rough at times and painful.

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post #2 of 10 (permalink) Old 12-06-2011, 10:55 AM
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Originally Posted by Crime Scene 96 View Post
I guess this question would apply to those up north, but what is an acceptable tire pressure setting for winter weather?..........I have 255 50 zr17 in the rear and 235 50 17 up front.........is it a game of physics by lowering tire pressure for better traction for the cold days? Better tires?.......
Quality all-weather tires are a big step in the right direction. Optimal air pressure is an important issue as well.

But......more specificity from you would be a good thing, too.

Are you JUST wanting to know about cold weather?
Are you wanting to know for cold and 'wet' (40'ish degrees) or cold and snowy (20-ish degrees)?

FWIW, the recommended tire pressure with the 255/50/17's (Impala SS) was 32 PSI. I normally ride at about 36-37 PSI. But.....I'd drop that pressure for snowy, winter driving to the 32 PSI range......If I had to drive in the snow (I'm from Chicago so I've had my share of driving on snow ).

Otherwise.....if you're just concerned about cold (40'ish) and wet driving.....well, I'd still have 36-37 PSI in my tires.

YMMV, of course .

KW

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Last edited by KW Baraka; 12-06-2011 at 11:50 AM.
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post #3 of 10 (permalink) Old 12-06-2011, 12:31 PM Thread Starter
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Im sorry shouldve been more clear. Im asking in reference to snowy, and rain/icy weather... If temps here can stay above *35 degrees while raining, then im good concern wise. But its those night time temps with the added wind which freezes the wet pavement that concerns me a little. Really the snow driving isnt too bad, as long as when it melts, it melts to water completely. This year when it snowed, it started thawing in day light, but frozen over night which caused crazy sheets of ice, and put me on the shelf as a result.

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post #4 of 10 (permalink) Old 12-06-2011, 12:45 PM
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Maybe you want these?


On a serious note, I've never adjusted my tire presurre for winter/cold weather and I've been up north my whole life. Just be careful and know the dangers.
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post #5 of 10 (permalink) Old 12-06-2011, 10:06 PM
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Are you having any ABS problems since your rear tires are taller than your fronts? And why aren't you running 255-50-17's up front? I try to keep my psi around 35. In my Camaro, I run 40F and 30R.
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post #6 of 10 (permalink) Old 12-07-2011, 10:37 AM
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Are you having any ABS problems since your rear tires are taller than your fronts? And why aren't you running 255-50-17's up front? I try to keep my psi around 35. In my Camaro, I run 40F and 30R.
WTF? That's a huge difference!

Is that just for winter snow/ice?

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post #7 of 10 (permalink) Old 12-07-2011, 12:54 PM Thread Starter
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Are you having any ABS problems since your rear tires are taller than your fronts? And why aren't you running 255-50-17's up front? I try to keep my psi around 35. In my Camaro, I run 40F and 30R.

When i bought this car last year, it came with 235's on it. Ive been wanting the 255's that it was equipped with from the factory. So far i only have 2. I will get 2 more around tax time which should be soon.... ABS light was already on when i bought the car. Dont know why, and dont care really cause if its any benefit of having the whole system removed, its coming off. Otherwise i will get it fixed one day, as long as the daggum car stops.

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post #8 of 10 (permalink) Old 12-07-2011, 02:09 PM
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here's the stock info




i like 35 PSI all around... mileage is good, tire wear is good, handling is good.

tire choice is the biggest factor to help yourself in winter driving weather.

-ALF out...

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post #9 of 10 (permalink) Old 12-07-2011, 03:34 PM Thread Starter
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Thanks a lot, that was a big help from all of you. But those stickers really showed me what i needed mostly. Do you guys know who can make replacements with or without vin info?

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post #10 of 10 (permalink) Old 12-08-2011, 12:05 AM
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......Do you guys know who can make replacements with or without vin info?
Check with a GM dealership (the parts department). If you're lucky, they can do a label.....or point you in the right direction.

KW
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