MRWendt

I picked up a set of 2015 18" Sport Appearance Package wheels/tires from a member here. I installed them on my 2012 SCAB 2WD and they look great!


My question is what tire pressure should I run? My stock wheels were the plain XLT 17" with 235/75R17 and the sticker on the truck recommends 38 psi.


My new tires are obviously much beefier 275/65R18. Tire shop put them back to 38 psi per the sticker. Do I need to run a bit more/less pressure to compensate for the change in tire/wheel size? I am just trying to get perfectly even wear so these tires last me!


Thanks for your input

gDMJoe

Size machts nichts. Tire construction (e.g. # ply), type, rating, load index, type (P, LT, etc.) will determine PSI.

If the types are the same, it would be appropriate to use the same PSI.

If all else fails ... ROT (Rule Of Thumb) - 75% of the maximum PSI stamped on the sidewall and monitor tread wear.
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