Got Educated on Tires Today

[nast70]

Truck is an '09 F250. Installed BFG Ko2's from Costco fall before last. Love the tires! Popped by Costco to get a pressure check before hauling the rig out for the long weekend. Its free, they were slow, and I've never taken advantage of the service before. Tech looks at the door, says "65lbs" and away he goes. Wait, what? Tires say 80lbs? Needless to say I now know the difference between max pressure and recommended pressure. They should be running 65 according to the manufactures specs, on both sizes, the sticker size (18" rims), and the actual size. My Lariat came with 20" rims. Turns out I have been running the tread down a bit faster in the middle of the back because of the higher pressure I've been running at.
Kudos to the tech taking the time to show me all his info from the tire manufacturer, and showing me the measurements with his gauge.
Many of you already know Costco can't be beat for prices, but the service is not lacking either.
This was at the 149st location btw.

 

[Caper11]

Great to see a person take the time to explain truck loading. Its important to setup a truck and trailer properly, it makes for a safer more enjoyable drive.

 

[NoBrakes!]

I used to pump everything up to max as well... never knew it says inside the door what's required. With tires being the outrageous price they are for trucks, nice to get them to wear evenly and get the most out of them.

 

[kovs]

I get the tpms re programmed so I can drop to 50-55 in rear and 60-65 in fronts. Rides way better and better wear than 70-80 like they want.

 

[doorfx]

Not always can you go by door pressure rating. F-150, I put 18” BF Goodrich all terrain KO on. Dealer installed the tires and set them at 35psi as per door sticker. I had to call BF Goodrich and give them all the info from my truck. They recommended 53psi , no lower, for the best ride and bump them up to 65psi when towing. Dealer says their hands are tied and legally they have to inflate to manufacturers spec. BS.

 

[ABMax24]

I find it really varies by tire, I had 35" toyo MT's and 50psi all the way around and they wore great. Now have 37" Nitto Ridge Grapplers running 60psi in the front and they still wear more on the outsides and 45psi in the rear with way more wear in the center of the tire even with the extra weight from my fifth wheel.

 

[Turts]

Pressure is a function of load. Just sayin’

 

[tex78]

Not always can you go by door pressure rating. F-150, I put 18” BF Goodrich all terrain KO on. Dealer installed the tires and set them at 35psi as per door sticker. I had to call BF Goodrich and give them all the info from my truck. They recommended 53psi , no lower, for the best ride and bump them up to 65psi when towing. Dealer says their hands are tied and legally they have to inflate to manufacturers spec. BS.

No no


Lots of old guys have special psi they like to run

And as long as your telling them to put in more than the min spec psi of 35 psi for a 4 ply car tire, halfers use factory
Cause u installed 8 or 10 ply tires, there is no reason for them not too

 

[doorfx]

Give &)@&$ Ford in Calgary a call and tell them that lol

 

[sirkdev]

https://m.youtube.com/watch?v=FabWgDAulGg

 

[AreWeThereYet]

https://m.youtube.com/watch?v=FabWgDAulGg

Yup, exactly what I do. Had a set of 35in toyo m/t that were worse straight across and rotated every year.

 

[Cyle]

Just a FYI but if you get checked by DOT tires must be inflated to within 10% of rating on tire or out of service. No exceptions. I run my 3500 at 80 all 4 corners all the time. Tires wear pretty even. But more important no problems if a tire has leaked a bit. Rears are high empty but tow/haul a lot and tires wear really fast then and overall wear pretty even with the odd 30k or so rotation.

 

[tex78]

Just a FYI but if you get checked by DOT tires must be inflated to within 10% of rating on tire or out of service. No exceptions. I run my 3500 at 80 all 4 corners all the time. Tires wear pretty even. But more important no problems if a tire has leaked a bit. Rears are high empty but tow/haul a lot and tires wear really fast then and overall wear pretty even with the odd 30k or so rotation.

A diesel 3/4 and up truck, only needs 55 front and 55 plus rear unless loaded to the max

At 55, roll good, have good wear, have good grip, and don't chunk apart as bad on gravel ect cause there not ballooned


In gm land, the tire psi sensors can be programed down to 50 on a 1 ton, and some tires in 8 ply can only hold 50 psi max anyways

 

[pfi572]

In GM land when did they start putting sensors in trucks over 11000lb gvw?

 

[j335]

A diesel 3/4 and up truck, only needs 55 front and 55 plus rear unless loaded to the max

At 55, roll good, have good wear, have good grip, and don't chunk apart as bad on gravel ect cause there not ballooned


In gm land, the tire psi sensors can be programed down to 50 on a 1 ton, and some tires in 8 ply can only hold 50 psi max anyways

Just rotated my gm 3/4 ton tires. Fronts had 55lbs with perfect wear and rears 65-70 with too much center wear. Went to 55 lbs all around.

 

[Cyle]

A diesel 3/4 and up truck, only needs 55 front and 55 plus rear unless loaded to the max

At 55, roll good, have good wear, have good grip, and don't chunk apart as bad on gravel ect cause there not ballooned


In gm land, the tire psi sensors can be programed down to 50 on a 1 ton, and some tires in 8 ply can only hold 50 psi max anyways

There's two different issues though, what is ideal for wear and what the law says. If it's a private vehicle and rarely if ever tow you have little worries of ever getting checked, but if it's commercially registered and you get checked, tires must be within 10% of the max psi on the tire or you ain't moving until they are and depending on the cop they won't let you just fill them up they will say they are leaking and must get tire company out to fix, especially if you're running a 80 psi tire at 55. That is why mine are all 80 all the time. Having said that, my rears wear perfect as my rear axle is at max probably 25% of the time, and for a Cummins IMO 55 is too low even if empty, and my slip tank, etc puts some weight on front so while it's not at max it's enough that fronts wear fine. The rears are what wear anyway if you tow/haul. On my first rotation my rears were at 50% and my fronts at 75%.

 

[Caper11]

In GM land when did they start putting sensors in trucks over 11000lb gvw?

The 2020 3500 GM I built online. The tpms was a option.

 

[kovs]

The 2020 3500 GM I built online. The tpms was a option.

You can build online now. Hmm have to check out

80 psi must ride like a brick $hit house snap & jar your neck on every little bump
No thanks. Electric compressor under seat to appease the useless tit that knows nothing about tires

 

[Mike270412]

I have never heard of an enforcement type officer checking tires with a pressure gauge.

There's two different issues though, what is ideal for wear and what the law says. If it's a private vehicle and rarely if ever tow you have little worries of ever getting checked, but if it's commercially registered and you get checked, tires must be within 10% of the max psi on the tire or you ain't moving until they are and depending on the cop they won't let you just fill them up they will say they are leaking and must get tire company out to fix, especially if you're running a 80 psi tire at 55. That is why mine are all 80 all the time. Having said that, my rears wear perfect as my rear axle is at max probably 25% of the time, and for a Cummins IMO 55 is too low even if empty, and my slip tank, etc puts some weight on front so while it's not at max it's enough that fronts wear fine. The rears are what wear anyway if you tow/haul. On my first rotation my rears were at 50% and my fronts at 75%.

 

[Caper11]

You can build online now. Hmm have to check out

80 psi must ride like a brick $hit house snap & jar your neck on every little bump
No thanks. Electric compressor under seat to appease the useless tit that knows nothing about tires

American website. I really like the look of the new GMC heavy duty, nice looking truck.