What tire pressure are you guys running? mileage vs comfort?

I have low profile 18S and run 45 to 50PSI.

On stock 16s, I think it's 32 rear 30 front. It says it on the inside of the fuel door. Follow the pressure of the fuel door for best comfort and MPG.

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k

i usually run 35 on everything. I rarely go off the sticker as i'm not running factory tires. But lately i guess the guage on my air chuck failed recently. Thought i was running 35psi but was running 43 when i checked it against 2 other guages wihich explains my recent harsh ride and rediculous mileage.

35 psi all the way around.

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Jim

34/35 front and 35/36 rear on stock 16 inch wheels, I originally used 32 all round but found if I lost a few psi over time the car acted very loose and drove as if suspension was shot.

If running the factory spec pressure with factory wheels and tire size, do you guys run the normal pressure or max load pressure? I believe normal is something like 27 front 28 rear, and max 28 front 32 rear, but don't quote me on that. I have got back and forth and I believe I usually end up running the max load pressure thinking mileage will be better.

Look at fuel cap door, it says to add (IIRC) 4 psi if you plan on running 100+ mph.

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Jim