How to inflat car tires!?!

[slikmunks]

btw, 50/50 weight distribution, daily driving, i had my tires set at 34psi all the way around

 

[Danman]

I have a tire gauge that if you don't press it all the way it will deflate the tires downwards.....

 

[spacejamz]

based on the replies so far...does everyone actually replace the stock tire with the exact same one (I seriously doubt it)? Those readings in the manual and the door jamb are meant for the tires that came with the car...

Since tires have different characteristics, those specs may or may not be suitable for replacement tires that are put on the car...

The designers of the tire should know the ideal PSI for their tires so that is what should be used...

 

[PatboyX]

Originally posted by: BillyBatson
I drive a 95 Nissan Altima. The front tires read max pressure 35PSI, back tires read max pressure 44PSI.
First off someone said that it is weird for the tires to be of diff max pressure ex. all 4 tires should be 44psi, is this true!?!?
2nd when filling the tires how close do I need to get to the max PSI, I am going for better gas mileage and not traction.
As usual all help is greatly appreciated!!!

dude, all you need to do is say "SHAZAM!" and let the big guy take over; he'll know what to do.

 

[thomsbrain]

i inflate higher than the car's recommended pressure (but never higher than the tire's recommended pressure) because i actually get more even tread wear that way. i corner hard and unless i inflate higher, i wear down the sides of the tread way too fast.

 

[CFster]

Seems like somebody posts this same question every so often.

Always go by the sticker on the car or the owner's manual.

Different cars call for different tire pressures, even if they happen to have the same brand of tire. It has to do with the weight of the car, weight distribution, speed rating of the tire etc. Most passenger cars are in the 28-33 psi range. But I had a Porsche in my shop recently that called for 50psi in the rear tires.

There are special cirumstance though. For instance, we have plow trucks that call for 65psi all around - but we increase the front tire pressure to 80psi when the plow is installed - bearing in mind we install truck tires with a max pressure rating of 85psi. We'll often reduce the pressure in the rear tires to get more traction due to an increased contact patch as well.

Another instance is racing. We'll often run our racing tires in the high 30s. This is to decrease heat build up and also results in more responsive handling. But, it's at the expense of some traction - it's a trade-off.

 

[BillyBatson]

Originally posted by: PatboyX

Originally posted by: BillyBatson
I drive a 95 Nissan Altima. The front tires read max pressure 35PSI, back tires read max pressure 44PSI.
First off someone said that it is weird for the tires to be of diff max pressure ex. all 4 tires should be 44psi, is this true!?!?
2nd when filling the tires how close do I need to get to the max PSI, I am going for better gas mileage and not traction.
As usual all help is greatly appreciated!!!

dude, all you need to do is say "SHAZAM!" and let the big guy take over; he'll know what to do.

lol but "I" would be the big guy! I would still be clueless just well, bigger!!!

 

[Kadarin]

Always check the owner's manual or the door sticker, as the tire itself does not know what kind of car it's on. On the other hand, if you own a Ford Explorer and the manual says 26PSI, you might want to up that a bit...