4000 psi wrote:
>
> well i finally got the Michelin Cross Terrain 255/60/17 to replace the stock
> Michelin LTX M/S 245/65/17 ... first impression is: they are great!
>
> i feel like i got a pretty good deal on them at Tire Rack ($120 delivered)
> and the dealer did the mount and install for $54.16 for all 4 tires ... i
> could not believe that the dealer actually had the best deal on install ...
>
> on the way home i checked the tire pressure and it ranged in the upper 30's
> PSI in all 4 tires (not cold) ... has the dealer over-inflated the tires?
>
> what is a good way of figuring out the approproriate inflation pressure for
> this size tire on an infiniti QX4?

You are not all that different a size tire than stock, so the factory pressures listed in the Owner's Manual would be a good place to start. Here are some ideas you might try if you want to experiment a little from the
http://www.4crawler.com/Diesel/Tires...roperInflation

--
Roger