Proper Tire PSI for 04 altima 2.5S

[kmpoaquests]

Okay I just recently went n' did a mod , I modified my muffler n' went from a single stock muffler to a dual setup with OBX Type-R mufflers (Canister styled) , I'm trying to increase my mpg and I Did about 3-4 hour research online so I'm thinking First thing first is to get the proper tire pressure , What do you guys recommend for stock 16" 2004 altima 2.5s ? (I heard it's in the center console but I would still like to hear from other members, I don't want a rough ride).

I also might add that I plan on using some high-quality Brand name fuel injector Cleaner , again suggestions would be GREATLY appreciated.

My car's got about 76k on it (I bought it with 70k on it, It was a leased car)

Thanks !

[Acer]

Don't bother with fuel injector cleaners. Manual says no additives. And the recommended PSI is posted somewhere in the car. I think its 29 PSI not sure. The 05 stock tires are 29. I myself go to 33 summer and 34 winter.

Its not so much of a difference in harshness. I don't think PSI makes too much of a difference in MPG probably 2 or 3.

[froedrick]

On both my 03 2.5s and my 06 3.5SE I've always run 35 psi front and rear and get the best wear out of them.

[LSUtigerME]

Originally Posted by Acer

Don't bother with fuel injector cleaners. Manual says no additives. And the recommended PSI is posted somewhere in the car. I think its 29 PSI not sure. The 05 stock tires are 29. I myself go to 33 summer and 34 winter.

Its not so much of a difference in harshness. I don't think PSI makes too much of a difference in MPG probably 2 or 3.

Since when is 2 or 3 mpg not a big difference for adjusting tire pressure?

I usually run 33 all around.

[Acer]

Originally Posted by LSUtigerME

Since when is 2 or 3 mpg not a big difference for adjusting tire pressure?

I usually run 33 all around.

I didn't explain myself correctly. I was at work while typing my thoughts.

I don't think it makes much difference. In going from 29 to 34 psi. 2 or 3 MPG would make a difference but adjusting PSI probably wouldn't give u that (I should have logged it before changing psi). Adjusting driving habits would, that's what I did.

There I hope I fixed what I said.

[kmpoaquests]

lol it's all good my man, well I Figure I clean out all the crap built up in the gas tank since im one of those guys that only puts in like 9-12 bucks of gas in the car at every fill up , not the whole tank so I assume lots of crap gets built up quicker

I dunno I'd rather not waste any money at the dam dealership with their fuel cleanin service

[kmpoaquests]

I went out to pepboys bought me a digi-meter for the tires

And I found this weird

Front Left Tire - 33.5
Front Right Tire - 33.3
Rear Left Tire - 35.2
Rear Right Tire - 33.1

I check the console and it reccomends 29 for all tires , Are my tires over the limit ?

The only tire I filled up was the RR Tire to 35.2 , The ride home seemed more smoother , less bumpier or hell maybe my imagination.

[akashmer]

Ya mine all say 29, don't forget thats cold tire pressure. Like in the mourning.

I have Yokohama's on mine and well if you don't run them at 29lbs. it sounds like 4 bricks hitting every crack and bump on the road. Though if I go on long trips I push it up to 31lbs. for better mileage. right now I live 4 miles from work.

You can run them as hi as 35 but I wouldn't. I live in Michigan.....way too many potholes here. I bent a steel rim on my accord 2yrs. ago, no crap I saw one 6ft by 8ft on a bridge over pass that same year.

lower profile higher pressure, big fat +1 one's like on my stock rims... low for comfort.

[froedrick]

You guys all watch those bridges. Especially with what happened in Minneapolis!

[RIZAMAN]

Spec (for the 215/55/17's):
33 up front
30 rear

I run 34 all around...

Paisted from the manual (for reference):

[hrbib21v2.0]

Originally Posted by RIZAMAN

I run 34 all around...

Same here. I prefer a firmer ride. I do notice a difference in going up 3-4 psi, too. These stupid speed bumps around here tell me all I need to know about it.

[kmpoaquests]

So higher above recco. Is a firmer less comfortable ride ? I'm just fukin pissed dam mechanic found a nail in one tire , so I gotta repair that shit

and Yea I saw the bridge , It shows how ignorant the govn't is , makes me wonder why pay taxes anymore

[quick name]

Depends on the tire also, If it has stock then it whats on the data plate. The dealer ship switched mine out to better tire before I bought it so I go by whats on the tire itself. Although it says 44 max, then says it can hold XXXXX @ 52 PSI. Dont know what thats about so i run it @ 44.

[froedrick]

That pressure that's listed on the tire is the max safe pressure that tire will take. Don't ever run on that kind of pressure. If the tire is still about the same size as the orig. tires you should run no more than 35 lb. for good mileage and the pressures that are on the sticker are what the manufacturer thinks will give you the most comfortable ride. I'd let a bunch of air out of those 44# tires before you blow 'em up and wreck your car.

[hrbib21v2.0]

^Exactly. The manufacturer recommended tire pressure is there for a reason. The suspension is meant to work with the tire at those pressures.