What's your preferred air pressure for tires?

[Merkava_4]

Door placard says 33 PSI, but just to give me an allowance for air pressure loss over an extended period of time; and the possibility of tire pressure gauge inaccuracy, I run 35 PSI. What about you?

 

[2007LucerneCXL]

It's tire, rim size and type that should be the factor on tire pressure so if all are not identical it's a moot point.

 

[patcal]

Since I have the P215/70R15 tires with stock wheels, I am running the recommended 33PSI.

 

[GliderRides]

My door sticker shows 30psi, with 225/60/16 tires. I run 30.

My $8 stick pressure gauge is more accurate than my buddy's $50 dial gauge. Proved it, but he's still in denial. 😀

 

[BossHog39]

The tire pressure Charts in cars Is B.S crap there is too many factors to take into consideration on any tires not related to the tire brand that car came from factory with. Different tire rubber compound mix's from one tire brand to another softer vs stiffer ride tire's with all of this comes varying tire weight rating. I start a new tire at 35 psi regardless if its rated at higher PSI I watch how tire wears and adjust my tire pressure accordingly to a soon to be default pressure I will continue to run in that tire. Same goes for front to rear getting a good even tire wear on rear of vehicle may not & normally is not the same at same pressure as front. so if tire seems to be wearing too much in center of tire I would go down some psi's same goes if wearing out edges of tire I would add PSI's. years ago I had a few Ford Rangers small pickups are really bad at this I use to run 35 psi in front and 26-28 psi in rear to keeps tires wearing even

 

[GliderRides]

...I start a new tire at 35 psi regardless if its rated at higher PSI .

The pressure rating listed on the sidewall of a tire is the maximum pressure at maximum load. One single tire of a car will never see that maximum load.

 

[gnhbodyguy]

35 psi

 

[R111S]

05' LeSabre Limited w/16" Wheels - run 2 or 3 PSI above the Door Label recommendation.

 

[mitchflorida]

If you're not using a combination of 85% nitrogen 15% helium, not atmospheric air, you're wasting your time. I get superior gas milage from my Regal because the car is effectively lighter on its feet and the nItro doesn't leak from the tire like air does.

 

[Homer Jay]

Tires inflated with nitrogen are beneficial for highly specialized service applications in demanding environments, such as aviation, mining, or construction. For the most part, nitrogen makes absolutely no difference when it comes to a loss of pressure and there’s no discernible benefit over air-filled tires, and that includes performance factors such as rolling resistance, fuel economy, and tire aging. Inflating tires with nitrogen is not necessary for typical everyday use on a passenger car. It might even be considered a frivolous waste of money.

 

[Waiex191]

I run mine at about 78% nitrogen.

 

[MelsRegal]

I run mine at about 78% nitrogen.

That's funny, wonder how many wont get it.

 

[GliderRides]

That's funny, wonder how many wont get it.

Well, my first guess was fertilizer grade. In another 10 seconds the correct answer occurred to me.

 

[mikec6201]

Air is 78% nitrogen 21% oxygen ....🤓

 

[Lubener]

If you're not using a combination of 85% nitrogen 15% helium, not atmospheric air, you're wasting your time. I get superior gas milage from my Regal because the car is effectively lighter on its feet and the nItro doesn't leak from the tire like air does.

Now that's a lot of hot air!