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Are you keeping your Terrain's tire pressure per the GMC recommendations (I think it's 35 psi all around). I always inflate a little higher the specs. I recently inflated to 36 psi but might go to 37 next time.
 

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No, I keep mine at 32. Even a few pounds seems to cause my Terrain to ride better... less harsh.
 

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I keep mine at 33psi all the way around...seems to be my sweet spot for ride/handling.
 

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DavidPJ said:
Are you keeping your Terrain's tire pressure per the GMC recommendations (I think it's 35 psi all around). I always inflate a little higher the specs. I recently inflated to 36 psi but might go to 37 next time.
I'm with you. I keep mine at 37. Anything less it feels more and more squidgy. At 32 psi I would feel like I am dragging a millstone. ;D
 

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Don't go to much over 35 or under 35. Over will wear the center of the tread and under will wear the outside of the tread. When gas went through the roof a few years ago I ran 42 all the way around on the trailblazer. It was awesome on gas but the middle tread wore down 2-3 32's then the other parts of the tire tread. :'(
 

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Ours stays at 38. Vehicle rides MUCH better in both the dry and wet. Not to mention it doesnt feel like a marshmallow.

Mind you, we are on the smaller wheels. I would never try 38 in the 19s. Itll probably shake your fillings out.
 

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bballr4567 said:
Ours stays at 38. Vehicle rides MUCH better in both the dry and wet. Not to mention it doesnt feel like a marshmallow.

Mind you, we are on the smaller wheels. I would never try 38 in the 19s. Itll probably shake your fillings out.
I'm on 18's and keep them at 37-38 all the time. It "pitches" less on highway curves and is quite a nice ride otherwise. FYI, wife has MAJOR back issues and pain issues and she is very happy with the ride at that PSI.
 

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Terrain said:
Your sig says otherwise.
Not enough coffee this morning, brain went to mud for a sec. Good catch.
 

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note: tire size matters, not your rim size.....you could be on 20" rims with 245/60/20's
 

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gar187er said:
note: tire size matters, not your rim size.....you could be on 20" rims with 245/60/20's
But....what is the size for the 19" rims?
 
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