I put 16" ROTA SUBZERO on my 99 civc EX. Can you guys tell me how much air should I keep? 32 PSI?

 

Read the tire sidewall. Tells you all the info you need. -Later, BR

 

Check your drivers door, there is a sticker that lists the recommended tire pressure. The pressure on the tire is the maximum pressure and has nothing to do with your specific vehicle.

 

Correct, all tires have a max tire pressure written on the side. I usually run a few psi under

No...that pressure is for the stock "size" tire

 

Maybe I should have been more specific...


Wheel and Tire Forum

What air pressure should I use in my tires?

As a general rule, regardless of wheel or tire size or type, the best place to start is with the pressure recommended for your CAR, as shown in your owner's manual and on your car either on the door jamb or glove compartment door. Measure the pressure when the car has been sitting for several hours out of the sun, at the outside temperature at which the car will be used. Adjust from there in 2 psi increments as needed, based on tire wear and your preference for handling and/or ride comfort.

Do NOT set the pressure to the maximum pressure indicated on the sidewall of your tire.

Start with stock and go from there.

 

cant go wrong with about 32 psi give or take

 

I still say you can't use the oem sticker once you have changed your size from stock!

My very 1st civic i bought brand new, a 1989 Civic DX. It had 13" wheels with 175/70R13 tires stock that ran about 32psi

if i stepped up to a 15" wheel with lower profile tires, it will need more air pressure, and 16" and so on. If i had been running a 17" wheel with low profile tire, it would have nothing to do the the oem recommended tire pressure of the stock 13" tire

 

I don't believe you are thinking correctly. My other car has 235/40/18 - with that theory, I should run an ungodly high pressure? No.

It's PSI people. Think about it logically.

I'm with the 32 psi guy!

 

its pressure, not volume of air.

but i keep my tires at 38-42 psi. max is 44psi. in the winter i run down to 28psi for the snow.

 

soo much wrong information in here thats trying to be corrected (thanks to deetz). read your sidewall as its been said already, but realize that if you put say 35psi in your tires when they are cold, that pressure will rise to ~40 when they get hot. with that said, read the sidewall and go 3-5psi under that.

 

I don't know why people keep talking about the sidewall psi because that is the MAX pressure, it is absolutely useless because the tire should never be filled that much. Door sticker plus or minus 1-3 psi. Also, personal preference does play a factor. Some people like a little more or less.

 

Me too! I go by the way my Vic drives.

Door sticker pressure performs like a %@$! pig, e.g. massive under-steer.

I'm rolling on Pirelli P4s. I started at 36 PSI (Discount Tire recommendation), and bumped it up a little, each week.

Presently, I'm running 43 PSI / front, 41 PSI / rear. Feels perfect...

 

ok looked at the car parked next to my sol out side the guy next door got it 3 days ago tire says 44 psi MAX press at Max load it has Stock 19" wheels with 45 searies tire the door jam sticker read 36 PSI front and rear for 19" wheel it'a a dodge.

Now 36 PSI in a 10 Gallon Air tank is the Same as 36 PSI in a 50Gal. air tank you just get 40 Gallons More air at 36 PSI then the 10 Gal.

and at 34 PSI all radials on a passenger car regardles of size have flat tread to ground patterns. at 30 PSI Most start lifting the center of the tire from the ground and putting More pressure to the ground at the outer edge of the tire. in turn at 40 PSI the tire is more firm and comforms LESS to the ground making it Less likly to grip the road in Wet condions or On Unmaintained roads. and at 44 PSI the tire is Rigide and have Very Little flex alowing the littlest pebble to lift the tire from the road making for a ruffer ride and wearing on shocks and suspension part More then thay would be at say 36 PSI.

 

32-35 psi for best tire wear, IMHO.

I never run the max tire pressure that is listed on the sidewall.