Power6

I would tend to agree with you...except that the spec for this car is like 26 psi, totally in the "cushy ride cuz gas is cheap" era that this car was made in. Even then the engineers are only dealing with the OEM model tires, they have no idea what happens 14 years later in tire technology.

So personally I run 32psi or so, better handling and lower rolling resistance. I doubt any tire today is going to work optimally in the 20s, since 32-35psi range is so common an OEM spec for pressure.

I have experimented with pressures street and track on many different tires, and can say you don't hit the "uneven middle wear" issue until well into the 40s. In the mid-high 30s you get better response and less shoulder wear in my experience. I don't care as much about that in the Lex so I run lower 30s.

285exp

The owners manual states 26 psi lightly loaded, 32 fully loaded. The 26 recommendation is clearly directed toward ride comfort, not better handling or fuel economy. I run mine at 32 all the time, and there is no noticeable penalty in ride comfort and the handling is better. 37 is excessive, and the fuel economy increase isn't going to be very much. In any case, the OP's low reported mileage is primarily due to his mostly city driving. 18 mpg is perfectly normal for the type of driving he describes.

Hayk

iTrader: (1)

I agree with both. I was also a bit surprised by 26psi, the first time I saw it, so I decided to go with the "fully loaded" rating of 32psi, as it is so common these days. From my experience, I've noticed that dealerships like to push the pressure even higher and you will often leave the lot with 35+psi in your tires, but I think that's purely because of liability. Just like most mechanics will tighten the **** out of your lug nuts with an impact gun, just so your wheel doesn't fall off down the road.

plux

i get around 8-10mpg anyone know why or how to fix?