First of all hello to everybody.

Adam here. I need input on Tire Pressure for my 88' 560SL? I'm running
235/45-17" on 8,25" 500SL rims.

I was trying to find any information but it is not easy. At this moment I am running 36psi front/rear.

Any suggestions would be greatly appreciated.

Put what the tire sidewall says. Personally I put in about 10% less if it's cooler out and the tires are cold. Once you start driving and the pavement heats up the air pressure will increase.

__________________
-James

'85 280GE...sold
'96 Impala SS ~ 6-speed 396
'14 Cadillac Vagon. . . . . . . . . . "Life without knowledge is death in disguise." - Hans-Peter Geerdes

Thanks James

Tire sidewall says 51 PSI max pressure but I am affraid that it may be too much?

Regards,
Adam

That sounds high...but if the tire was designed for it, I have no problem with doing that. As said before I'd fill them cold to about 45psi.

__________________
-James

'85 280GE...sold
'96 Impala SS ~ 6-speed 396
'14 Cadillac Vagon. . . . . . . . . . "Life without knowledge is death in disguise." - Hans-Peter Geerdes

Both rear/front? or should I try to fill rear more than front. Standard tires should be: front 29 psi/rear 33psi

No, do not fill the tire to the maximum psi as stated on the sidewall. It will result in a poor ride quality and less grip.

I'd say go with the MB spec, but add +3-5 PSI depending on your driving style.

__________________
1985 CA 300D Turbo , 213K mi