I recently bought a 2012 Double Cab Toyota Tundra it came from the factory with 20 inch rims and BF Goodrich All Terrain T/A KO tires LT 285/55R20. My tire light went off and I noticed a sticker was placed over another sticker from the factory of my trucks PSI. It looks like it had some different tires on it then they changed them to 20 inch and the BF Goodrich tires. Anyways it has listed that my PSI is 49. Which I thought was insane of a number for tires. I'm afraid the cent of these tires will go bald in a year. Anyone else had their Tundra saying your tires need to be at 49 and if they are what have you done did you keep it there or lower it?
According to the manual, the largest tire offered on the 2012 is a 275/55/20 with a recommended pressure of 30 psi front/33 psi rear. It sounds like they replaced the tires for some reason and also replaced the sticker. Either way, 49 psi sound way too high. The max pressure on that tire is 65 psi. I would send an email off to BF Goodrich with your vehicle information and ask them what they recommend for tire pressure. I did that with my Terra Grapplers and Nitto responded within 1 hour.
If those tires are load range E, and you can see that if you read the side of the tire, it can accomodate a higher pressure.
Maximum inflation pressure can also be determined by reading the side of the tire.
Common sense is a curse in disguise, because if you have it, you have to live with those who do not.
Everything will work exactly as expected, unless your expectations are incorrect.
That's crazy that the manual says that. but The style of rims and tires come with the TSS edition so there are a lot of trucks in my area with the same tires and rims from the factory. I guess the texans feel a need to supersize them lol. Anyways I took your advice and emailed bf Goodrich
the inflation pressure the factory installed on your BFGoodrich All Terrain T/A KO tires is correct. Because your vehicle came original with the P255/ 70R18 tires, the inflation pressure for the LT285/55/20 needs to be inflated higher to carry the same amount of weight.
So there we have it. Thanks for the help guys
Last edited by yourmom; 11-15-2012 at 12:00 PM.
Reason: Mis information
Oh no they don't not even when turning. I do apologize though I interpretted what all the information says. The Truck was built at the Toyota Plant in San Antonio, TX but the addition of the tires and rims and all that was done one it reached the Gulf States Toyota distributors.
Correct I've gone full lock in it going up hill and multiple times on flat ground with no rub but I haven't going down hill yet but yes no rub even then. I've been completely surprised by it not rubbing at all with turns.
If you've got a Texas Edition Tundra my guess is that you actually have BFG Rugged Terrains, not All Terrains. I certainly could be wrong but I haven't seen any Tundras with AT's from the dealer. In any case, the 285/55/20 is only slightly larger than 32in and there should be no problem whatsoever on these. Most can fit 275/60/20's (a 33in tire) with no lift. I second the recommendation to call BFG. I did when I stepped up to a 275/65/20 (34in) and wanted to know what pressures to run. Answered my question over the phone. FWIW, the 34's (E-rated) had a recommended pressure of 45psi front and rear so the 49psi does sound a little high to me.
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