Question about 1991 Honda Civic

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2005 Scion Tc - Tire Pressure

My girlfriend has a 05 scion tc limited edition. It has the 18 inch black tires/rims. She is always having problems with her tire light coming on. The dealership is full of BS and never fixes the problem. Her psi is always 40 or above, but never all the same... Anyways, I just looked in her driver side door and it says the front tires should be 32, and the rear should be 29... So I just check and two of the tires were at 60 and the other two at 50-55.... I fixed it to what the door said... is that too low of a psi to have...32 and 29.. I'm alittle worried. She said it's feels great... I'm worried???? Thanks!

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  • Anthony Cifelli Feb 02, 2009

    for 18 inch tire size, it says 32-29.... The tire says up to 50 psi, but thats the max! Thanks

  • Anthony Cifelli Feb 03, 2009

    I thought i put fixya... Sry! The car is running the best it ever has.... I dont want to jinx myself, but the tire light has not come on yet... What should I bump it up to in the summer time?

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  • Master
  • 5,158 Answers

It should be what the door says... but make sure the door is showing the size of tires that are on the vehicle... tire pressures are usually determined by an engineer for that vehicle and tire size
Also what does the sideway of the tire say ?

Robert

Please take a moment to rate this solution...

Posted on Feb 02, 2009

  • Roberta Smith
    Roberta Smith Feb 03, 2009

    please consider bumping this rating up to a fixya .. thanks



    I would go with what's on the door myself. or at least try it and see how it handles. I lower my tire pressure slightly in winter and raise it abit in summer ... better traction it seems in the snow and better gas mileage in the summer.



    Robert

  • Roberta Smith
    Roberta Smith Feb 03, 2009

    just run it at what is recommended on the door... raising the pressure in the summer might offer some benifits in fuel economy but you give up abit on traction. keep in mind that all the air pressures are when the tire is COLD ... running the tire heats it up slightly and raises the air pressure (i belive there is a formula for that)



    And yes you did but up the rating... thanks

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