What tire pressures do you guys run on your GS350's? I am thinking or lowering mines to make the ride smoother over rough pavement. My pressures came off the dealer lot @ 41psi on all tires when cold. I figured this is high? How much lower can I safetly go?

 

Wow that's really high for stock tires, they should have lowered it for you. Factory recommended pressure is on the door sill, 35 for the front and 36 for the rear. I like to keep mine between 36 and 38.

 

I prefer 32 psi cold for my fsport tires and it works perfectly

 

32 all around.

 

36 cold all around for the hybrid G.

 

36-37 Yeah I have had that happen to me its reached 46 psi before.

 

Thats only for the F Sport. Factory pressure for GS's with the 18s is 33 all around.

I run 32. Rides great.

Very common for pressures to be WAY too high, they are inflated high on the ship so they don't flat spot. Dealers just don't reduce the pressure. It will ride like a Rolls Royce at 32 if you've been running 41!

 

Ditto, my F Sports had PSI ratings of 42 for the fronts and 46 for the rears (cold) lol. I'm surprised the dealers don't check it as it's such an easy thing to do

For those of you who lowered below what is listed on the doors, did you notice any significant change in MPG?

 

Nope. 1 or 2 PSI isn't going to affect your MPG.

 

Oops I didn't know I was just going off of my model lol.

And yea I knew they overinflated them purposely but figured they'd adjust them when you purchase the car. Mine was adjusted before they let me leave in the car.

And I don't know why but when my tires get down to the 32-33 psi range I start freaking out thinking they're low on air. I'm just used to having bigger rims and lo-pro tires I guess ...