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i have michelin x radials and i have them aired up to max sidewall pressure of 44psi! i'm trying to break 50mpg's and i need everything i can get to accomplish this and i only have about 2 months before i trade my 2006 chevy malibu in! in yalls opinion can i safely raise the pressureto say 50 psi to help with the cars coasting ability? i will even go higher than that if it will help!

How close to 50mpg are you now?

about 2mpg's! question--how do you make the blue/green rectangular box that has mpg's and vehicle show up when you post?

Joe, 50psi is fine. I run higher in both my cars and have for some years now.

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I have the OEM Continentals on my Malibu for three seasons out of the year and have had them well above sidewall. On my car/tire combination, I found the OEM tires skitter a little at higher pressures, so I run them staggered, with more air in front than rear. That keeps them planted on wet roads.

The car glides fairly well, and it is flat towable, so you can guess what is available under those conditions.