I read so many different pressures.sticker gives low pressures 26 and 28r.what do you suggest.im looking for comfort and longevity of tires

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95 e320,87 sdl,79 300sd

Hello - I'm attaching a link to a thread where this is discussed; I hope you find it helpful

http://www.peachparts.com/shopforum/wheels-tires/178158-tire-pressure-420-sel.html

I just go with the max listed for summer tires on the fuel filler door.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

My SDL shows 29/30PSI for summer tires on my '86 300SDL. I find 26/28 to be eyebrow-raisingly low.

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Current stable:
1995 E320 149K (Nancy)
1983 500SL 120K (SLoL)

Black Sheep:
1985 524TD 167K (TotalDumpster™)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Tires are different than when these cars were made.Back the 32 psi was max inflation. Now its 51 on most tires.I run Max as it was drilled into our heads by the govt. a way to save fuel.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

It's also a quick way to have a truly awful ride, deafening road noise, rapid tread wear, wooly handling (especially in the rain or on ice), and a quick ticket to calling a tow truck on a hot day.

The recommended tire pressures are there for a reason. Do your own experiments with tire pressures vs fuel economy. I'd imagine you won't see more than a 1-2mpg difference. Weigh that against how quickly you replace your tires vs how long they should have lasted and you'll quickly realize it wasn't worth it.

__________________
Current stable:
1995 E320 149K (Nancy)
1983 500SL 120K (SLoL)

Black Sheep:
1985 524TD 167K (TotalDumpster™)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

what ever been running max since radials came on the market,no strange wear.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

On a 10 ply truck tire or an off-road rate military tire, sure run the max pressure on the sidewall. You won't notice any difference since the tire is tough as nails.

On a 2-ply passenger car tire, you'll notice. The center of the tread bulges and domes, causing a reduced amount of the tread to contact the road and accelerating wear to the tread in the center of the tread belt. Hitting irregularities such as expansion joints in bridges, potholes, pavement changes, and grooved pavement can cause damage to the sidewall, belt, or tread. The tire needs to have a certain amount of "give" to prevent damage from road irregularities and heat caused by friction and pavement temperatures.

A 1991 vehicle came from the factory with radial tires. The recommended tire pressures are there for a reason. Running at the vehicle manufacturer's recommended tire pressure will result in the best compromise of ride, handling, and tire wear.

To the OP: Open the fuel filler lid on your car. It should have a sticker in there showing you what Mercedes recommended for your car front and rear. It'll also have the recommended pressures for running alternate tires and load ratings.

__________________
Current stable:
1995 E320 149K (Nancy)
1983 500SL 120K (SLoL)

Black Sheep:
1985 524TD 167K (TotalDumpster™)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

It's on your fuel door. Tire pressure is fine at 32 psi all tbe way around.