it is supposed to be 32psi all around for 14"wheels and tires and 31psi for 15"wheels and tires. just check the driver side door jam and if not then check the tires and subtract 10psi from the max always, no matter the size, if you cant find the factory specs.
You sir are 110% right. What the manufacturer says on the door jam is the best tire pressure for a normally loaded vehicle. It's the best compromise between thread wear, comfort and fuel economy. In the long run it'll end up costing you less(not just tires, but everything connected to them) if you run at the recommended inflation.Originally Posted by aj_92rs
Running more air in your tires will decrease ride comfort and tire life significantly. Overinflated tires wear the middle part of the threads faster than the outside, ending in premature tire replacements. I suggest you talk to a specialist before inflating your tires to other specs than specified by the manufacturer.
I leased Pontiac Wave from September 2006 to August 2011.
[quote=ontarian_frog]You sir are 110% right. What the manufacturer says on the door jam is the best tire pressure for a normally loaded vehicle. It's the best compromise between thread wear, comfort and fuel economy. In the long run it'll end up costing you less(not just tires, but everything connected to them) if you run at the recommended inflation.
Running more air in your tires will decrease ride comfort and tire life significantly. Overinflated tires wear the middle part of the threads faster than the outside, ending in premature tire replacements. I suggest you talk to a specialist before inflating your tires to other specs than specified by the manufacturer.[/quotecir0ugc]
The percentage correct is a lot lower than 110%. Even the auto manufacturers don't put that much credence in them.
If you doubt me try googling "Ford Explorer Tire Blowout Rollover" and look at the pressure specs for your OEM doughnut spare. IIRC Ford specified too low a pressure on the old Explorer and got a lot of heat related blowouts--the tire mfg. specs were higher. At best the auto manufacturer's spec is an attempt at an estimate of a tire pressure that will be safe and comfortable for most tires that might be put on the car. You may want to use higher pressures if, for example, you value comfort less than most people or have the temporary spare on the car.
The tire manufacturer obviously has more specific data about the capabilities of their tires than the auto manufacturer, so I would prefer their pressure spec with regard to blow outs, fuel economy and tread life for their tire. Neither the auto or tire manufacturer seems likely to have enough info to provide a particularly accurate estimate of the best pressure for ride and handling because neither will be sure of your tire/vehicle combination at the time of manufacture.
Personally I start with the tire manufacturer spec and then adjust downward toward the auto manufacturer spec depending on the handling and ride feel of the car.
I run my 215/45/17 at 36..not because I check them a lot, thats just what they were when I looked at them.
30 PSI
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I went up and had mine rotated today, he said between 30-34PSI..so 32 should be about right but tires are different, i figure 10PSI lower than the max PSi, because the max on mine are 44PSI
I keep mine right around 35 -- and believe me I know -- I still have the stock tires -- and have a heck of a time keeping air in them.. has always been a problem.... and what is with the stock tire name???? Like I want people to read my tires.... KUMHO... who thought that up????
Kumho recommends 34psi is you do a lot of highway, 30 for mixed city/hwy.
I leased Pontiac Wave from September 2006 to August 2011.
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