RJC

For those with the 20" AMG wheels, what cold PSI are you running in your tires? I was surprised to see the placard in the door jamb indicates 39PSI cold. Although I have a coupe I'd imagine the recommended PSI should be the same as the sedan.

TIA

docsout

33psi per fuel cover.

RJC

33psi cold sounds right, 39 did not.

thnx

RJC

Coupe's cold pressures 32 all the way around...39 is for max load.

PeterUbers

Use the info on the fuel door for more accurate info

jenz

Play around with it, used to run 34 cold which felt fine

After a balance, tire shop put all at 39 cold which felt even better, only then did I realize it felt slightly sluggish at 34 like driving thru sand

Mitch Alsup

I am runing 39 PSI and the car has plenty of grip.
Mine is a 600 and I am averaging 22 MPG at 39 PSI.

I know it seems high, but the tires work--now If I can only wear these out and put on non-run-craps.

pvrick

I am running 38 front and 41 rear. Replaced run flats w continental d w s 06.I drive twisty roads and the extra pressure helps avoid edge wear. S 550

docsout

With the short side walls and stiffness of run flats, for comfort sake would it be better to run 32-33psi?

RJC

My coupe's recommendation is 32 cold and it rides nicely.