Tire Pressure Differences On Same Axles

[CWSWine]

I see a lot of talk about cold pressures but very little about the difference between tires on the same axles.

On the front tires, what are your limits of difference in pressure left and right?

On the back dual tires, what are your limits of the difference of pressure between the dual tires on the same side?

Rear dual tires on the same axle?

[lwmcguire]

Originally Posted by CWSWine

I see a lot of talk about cold pressures but very little about the difference between tires on the same axles.

On the front tires, what are your limits of difference in pressure left and right?

On the back dual tires, what are your limits of the difference of pressure between the dual tires on the same side?

Rear dual tires on the same axle?

On almost every vehicle the tire pressures should be the same left and right

[Old-Biscuit]

Tires on same axle should be aired up to match based on highest wheel weight
Side to side same pressures set COLD


Pressures will change between side to side based on sun/shade etc when traveling

[CWSWine]

I agree so if the pressure you run on the rear duals is 105 and notice that on the same side that one tire is at 105 and other is 108 do let air out to make them the same before you travel or is 3 psi difference OK? What is the difference do you adjust it? The reason I curious is I have been told even small difference in tire pressure between dual tires on the same side will cause one tire to carry more load than the other. Is that true or false?

[Crasher]

It's probably true, but IMO with a 3 psi difference between dual tires, the amount is insignificant. Even starting with the same psi, it's common for the inner tire to heat up a little more that the outer and it can have a couple psi more than the outer one. Truckers have been starting with the same psi in all tires for decades. Are we over thinking again????

[Mojim]

L O L !!!!

[Old-Biscuit]

How accurate is your measurement......??


Road CROWN will cause duallies on same side of road to carry more/less weight


Set tires SAME pressure COLD and GO!

[Domo]

difference is ALWAYS ZERO.

[CIDE]

I set them cold before a trip. As mentioned, pressures will vary during the day depending on sunny side and inner/outer. By the morning all will be back to 'nearly' the same L/R. I never let air out of a warm/hot tire. I don't like to see more than 4 lbs. between tires on the same axle but won't adjust until cold. I love TPMS for monitoring, won't be without it again - it quiets the voices in my head.

[CWSWine]

I was told ZERO between duals tires on the same side during the PDI and emphasized how important that was so you don't overload one tire. He also said it was important to keep within a couple of pounds on the same axle. Just trying to find out a consensus of what others think.

Originally Posted by Domo

difference is ALWAYS ZERO.

[Domo]

Originally Posted by CWSWine

I was told ZERO between duals tires on the same side during the PDI and emphasized how important that was so you don't overload one tire. He also said it was important to keep within a couple of pounds on the same axle. Just trying to find out a consensus of what others think.

Okay - thanks for raising the question of "tolerance" - the difference between any tire on the same axle is always ZERO +- (error of your gauge) +- (manufacturers recommend pressure differential per axle). For Michelin Truck Tires, Michelin says; "Ensure that the air pressure between the dual tires and/or tires on the same axle does not differ by more than 5 psi.")

To reword my original so it's clearer, the TARGET differential is ZERO and the ACTUAL differential can not exceed 5 psi on any duals or all tires on one axle.

[CWSWine]

I looked for that very information and couldn't find it so thank you for your effort.

Originally Posted by Domo

Okay - thanks for raising the question of "tolerance" - the difference between any tire on the same axle is always ZERO +- (error of your gauge) +- (manufacturers recommend pressure differential per axle). For Michelin Truck Tires, Michelin says; "Ensure that the air pressure between the dual tires and/or tires on the same axle does not differ by more than 5 psi.")

To reword my original so it's clearer, the TARGET differential is ZERO and the ACTUAL differential can not exceed 5 psi on any duals or all tires on one axle.

[Domo]

Originally Posted by CWSWine

I looked for that very information and couldn't find it so thank for your effort.

Yeah it is fairly well hidden, but I found it again today!

They have it on their site as a 150 page tire truck pdf! Find it ---> HERE <---

Great reading LOL!

Between us, we managed to get a good definition!

[beenthere]

grumpy man I am with ya... 8 psi if over a 100 is not gonna get a blow or hurt your tire. I would never adjust to low tire if no air available.. wow