I have a 1989 S420 with 177K miles, and all seems OK for now. My other two vehicles both take 10W-30. One is GMC Suburban, the other is a Land Rover.
The MB dealer in Atlanta Ga. suggested always use 20W-50, in the 420.
We now live in South Louisiana and retired. Should I keep the 20W-50 or wouldn't the 10W 30 be better for this climate?
thanks

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1998 Land Rover Range Rover 66K Miles
1988 300SE Totaled in 1998, hit by drunk driver, but we walked away OK
1989 420SEL 140,000, just warming up. Total by 18 wheel gas truck rear ended, but refused to lose another MB. Had it repaired cost $10,000+ Great Car again SOLD it for a 2003 C320 to save on gas
1991 2500 Suburban 454, 130,000, Best truck in the world. SOLD it out right.
1952 8N Tractor 1,000,000-/+

20-50

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1984 300SD Orient Red/ Palomino
1989 560SEC
2016 Mazda 6 6 speed manual
1995 Ford F-150 reg cab 4.9 5speed manual

agreed. Maybe knock it back to 15-50 in the winter

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1989 300ce 129k
( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone)

1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus

1994 e320 Cabriolet 108k



1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it


[/SIGPIC]

the weight of the oil depends on the climate. read your owners manual and it should tell you

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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)

20W50

If it gets cold there, you can knock it back some, as suggested, ... maybe a 15W40.

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It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D

Down here it rarely gets to 32 degrees. The heat usually gets to 100 degrees. Retireing from north Georgia, and living in south Louisiana, I just want to use the best oil for the 89 420

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1998 Land Rover Range Rover 66K Miles
1988 300SE Totaled in 1998, hit by drunk driver, but we walked away OK
1989 420SEL 140,000, just warming up. Total by 18 wheel gas truck rear ended, but refused to lose another MB. Had it repaired cost $10,000+ Great Car again SOLD it for a 2003 C320 to save on gas
1991 2500 Suburban 454, 130,000, Best truck in the world. SOLD it out right.
1952 8N Tractor 1,000,000-/+

Comparing GM vehicles with Mercedes is like comparing apples and oranges.

NOTHING about your GM vehicle is applicable to your Mercedes.

Thank goodness.

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Kent Christensen
Albuquerque
'07 GL320CDI, '10 CL550. '01 Porsche Boxster
Two BMW motorcycles

amen brother

I like 15W40 Oils for these cars, and they like the oil viscosity too. I would use a HDEO, Diesel Engine Oil, in your favorite flavor. Mobil, Shell, Valvoline, DELO, Castrol, Pennzoil, etc., come in 5qt. and gallon jugs at Walmart, AutoValue and AutoZone, NAPA.

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SONNY was right...Nobody Cares.
Calogero, from the movie, "A BRONX TALE."

Why do the big MB V8's enjoy such heavy oils? Cars like the rav4 in my sig and our caravan use like 5w30 or 10w30. Very lightweight stuff. Does it have to do with the oil consumption of the engine?

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

A lot of European cars are like that. M3's and Ferrari's use Xw60.

I'd use 15w40, which I beleive was factory fill. I'm partial to Delo.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200

Ive found that Castrol 05-40 import syn really agrees with my 1996 E320.

Interesting....what happens to the MB V8's if you run something light like 5w30 synthetic or such? High oil consumption? Timing chain explosions?

I thought MB recomended 0w40 Mobil 1 Synthetic for all engines....?

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

New Benz's use Mobil 1 5w40...

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Marc Galassini

'93 300CE 38K Sold
'89 560SL 19K Sold
'91 300SE 191K Totalled 11/6/08
'90 300SE 90K

any idea on what the path of the serpentine belt is on the 97 e420. I am in a pinch and need to find someone who knows