OK, lemme start some trouble here . . . . . . . LOL.

Can regular multi-vis oil be used in these diesel engines? Can any damage be done by using, say, 20W50 Castrol or Valvoline in the engine of my '83 300D? I know this will generate a furious debate . . . LOL. So, let's discuss proper, vs. other oils used in gas cars.

Also, what about using 15W40 oil in gas engines?

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1983 300D, the "Avocado"
1976 240D, 4-spd the "Pumpkin", SOLD to Pierre
1984 190D, 2.2L, 5-spd, my intro to MBZ diesels, crashed into in 2002