Well, my Benz only went ~1500 since I last changed the oil, but it smelled of gas and it had pretty low pressure at idle, so I decided to change it.

It was so thin that it was almost like water! Would anyone know WHY my oil would be reduced to this state? Must've been an awful lot of gas, right? I MIGHT have put a quart in between the changes but I don't know, I definetly didn't put two in!

Should I test my compression, is somehow the gas getting through? Bad rings? I don't have leaky injectors. I wasn't running THAT rich!

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Current:
2021 Charger Scat Pack Widebody "Sinabee"
2018 Durango R/T

Previous:
1972 280SE 4.5
2014 Jeep Grand Cherokee Limited "Hefe", 1992 Jeep Cherokee Laredo "Jeepy", 2006 Charger R/T "Hemi"
1999 Chrysler 300M - RIP @ 221k

I know nothing about your particular car, but that is a symptom of a failed diaphragm in the mechanical fuel pump on vehicles which have them.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

No mechanical fuel pump on a 4.5.
Gas in oil is also a symptom of rich fuel mixture or much short-trip, stop & go winter driving or combination of these conditions.

Happy Motoring, Mark

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DrDKW

Chances are you are running that rich -- no other way for gas to get in the oil on that car.

Pull the plugs and take a look at them -- if you have some black and some not, you have injector problems. If they are all black, you're running WAY rich.

You also need to drive it enough to get it fully warmed up (20 min or so at least at 175F or more) every week -- this thing runs very rich when cold, and could easily dilute the oil if you only drive a couple miles and then shut it off all the time.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!