Tire Pressure, front and back??

[BoostedMP3]

If the max tire pressure on the tires says 35PSI, what should you put the pressure at in the front and the rear, i never knew which was higher. I've heard like a few pounds less than max unless there is a lot of weight in the car. i'm just looking for best for gas mileage front and back.

 

[TheMAN]

whatever it says on the door jam, duh!

 

[whitemp5seattle]

what if you have aftermarket rims and tires?

 

[JoeManNorth]

I find it's a personal prefrence. The tires I currently have will take up to 44 psi. The door jam is just a guide. The more air you have, the quicker you'll be but the looser you are. Less air will give you better take of and handling but less top end and also less gas mileage.

Oh and i'm talking going from about 30psi to 40psi, I would never go higher or lower then that for daily driving. I have 35.5 on the front and 32 on the back.

 

[whitemp5seattle]

my tires say 51 max...so I guess I'll try something in the mid 30s

 

[99 Pro]

whatever it says on the door jam, duh!

Why be a F'n prick?

If your tires are max 35 PSI, then go with around 30 PSI.

 

[FSCatalyst]

Probably go with the door jamb also...I mean Mazda spent time engineering and balancing the car, I'm pretty sure they didn't slap a random number..

 

[JoeManNorth]

Heat, cold, asphalt temp, road conditions ie; bumps, wet, dry, tires and of course driving style really determine the correct tire pressure. Mazda have their recomended tire pressure but that's also with the cars original tires and condisions they have at their test track. They also put a "regular" or "average" tire pressure one for two reasons (well more but heck, I'm at work) 1. If they put a high pressure the car will be looser and faster and some dumbnut will end up in the ditch and want to sue them for recomending such a high tire pressure. 2. If they put a low pressure, the car will stick real good but you're tires will wear out at like 10,000m or something rediculus and again you get people complaining.

What does the door jam say anyways? 95% (probably more) of the cars on the road have 32psi on the door jam.

I also keep this in mind. If i see the outside of my tire wearing faster then the mid section, I need a little more air. If the inside is wearing faster then the out I need less air. It's not realy a good way, but if you keep a close eye on your tires you'll find the optimum tire pressure for the car and your rim/tire combo (and that goes for any car and any tire combo).

 

[niky]

I usually stick with 35 psi, and my tires still wear like mad on the outside shoulder.

Guess I should corner slower... :lol:

Lots of tires nowadays are optimized for 30-35 psi... it's somewhat uncomfortable at 35-40 psi, but I usually keep it there because I cane the car a lot. It's also slightly better for your fuel economy, too (but bad for drag racing).

 

[JoeManNorth]

Ya I agree 35-40 is usualy uncomfortable althogh I usualy run 35.5 on the front and my wear is perfectly even. What tires do you have?

 

[BoostedMP3]

if you're 35.5 in the front, do u go lower or the same in the back?

 

[JoeManNorth]

I ride it lower in the back, 32psi. I cant tell you if it's better really, my reasoning for that is that there's less weight in the back and having it at 35 would make the rear bounce more then it already does and possibly slip out.

All and All, try different things, it only makes a little difference on a normal ride but if you drive your car to the edge like I do, that's when you actualy notice a bigger difference.

 

[BoostedMP3]

I put 40PSI in the front and 37 in the back since max is 44