dave0000 said:
35 maybe 36 is the maximum you should go on a car this light, if you take it higher u will get uneven tyre wear(usually wears the middle of tyre). 35-40 would be fine if this was a big heavy 4wd but its not. im speaking from my 2 years experience doing wheel alignments. your car my seem to drive ok but drop the pressures a little and it will be even better.
^incorrect
rudeludenotmeanthough said:
read the sidewall on the tire and see what the tire manufacturer recommends.... EVERY tire has its pressure rating/s on the side.
^correct
and the reason i said use 40-45psi is because 99% of 40 series tires recommend 40 psi with a max of 45 psi. 35 psi or less will ride decent on smooth roads, but the second you hit a harsh bump, say BUH BYE RIM!! on 40 series tires, there is very little distance between the tread and the lip of the rim, uh durrrrrr. 32-35 psi is for passenger tires which are meant to have a decent amount of give in them to help absorb small and harsh bumps and to take some stress off the shocks/struts. 40 series tires are not passenger tires, they are performance tires, which are DESIGNED to hold higher tire pressures without bulging causing uneven tire wear.
read the sides of your tires, look for recommended pressure and max pressure. most tires list both. now go look at your mom's minivan tires and look for the pressures on those tires.
most passenger tires have recommended pressure of 32-35psi, and max of 35-38psi
most performance tires have recommended pressure of 38-45psi, and max of 42-52psi.
if you value those rims you paid more for than the value of the car, do the right thing and fill your tires properly, according to what the TIRE says, not what these morons above me say.
if your tires do not have recommended and/or max tire pressures listed on the tire, get rid of them, they are junk tires.
and the guy who said you use higher pressures in larger vehicles, damn dude, you really dont know what you're talking about. typically the larger the sidewall, the lower the pressure recommended to run. the smaller the sidewall, the higher the pressure recommended to run. this is called preventative maintainence. 30-35 psi in a typical 40 series tire will allow the tire to "give" too much on sudden bumps and harsh bumps, causing the pavement to smack the rim, denting it. 40 series tires of a halfway decent brand and better, are designed for the higher pressures; the have stronger belts and better shape, stronger structure. so they DONT wear more in the middle from "bulging".
anyone else who says anything in this thread other then read the tire for pressure recommended is just ignorant and giving bad advise. all tires are different, and require different pressures. there is no rule of thumb psi rating for all tires combined, just general ratings for approz sizes of sidewalls, like 40 series and 65 series like i mentioned. READ YOUR TIRES!!
dave0000 said:
i definately wouldnt run 40-45psi, thats way too much. i run my 45 series at 32/30. if you wana go higher dont go past 35psi or your car will handle like shit.
about that, thats wrong too. car will only handle like shit if you pressurise the tires to a completely different number then what the TIRE says to put them at.
going past 35 psi will only cause your car to handle like crap if you are using tires that are not designed to run higher then 35psi. and vice versa. if you have tires that are designed to run at 45 psi, the car will handle like crap if you set them at 30-35psi
