I once "washed" my '77 300D's engine with a can of WD40 and a bunch of paper towels. It was a can that had fallen onto it's nozzle and the nozzle was broken off. I used a can opener to make a tiny opening in the top of the can and let the WD40 drip onto the caked oil all over the engine. It worked pretty well, but I think I still had some oil left after the 16 oz of WD40 was all gone Just a suggestion; it did seem like a more controlled method than a car wash or a garden hose.

My current engine has yet to see water, but it doesn't use much oil, so it can't be leaking, right? I've been really tempted to take the SD to Florida when we go to visit the in-laws next, since they have a brand-new concrete driveway, so I can see if my car leaks. My current parking spot has been occupied by three MB diesels in recent years, so it's hard to tell if it's ATF, power steering fluid, oil, or diesel fuel marking up the asphalt.

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Bob Roe
Lehigh Valley PA USA
1973 Olds 88, 1972 MB 280SE, 1978 Datsun 280Z, 1971 Ford T-Bird, 1972 Olds 88, 1983 Nissan Sentra, 1985 Sentra, 1973 230.6, 1990 Acura Integra, 1991 Volvo 940GLE wagon, 1983 300SD, 1984 300SD, 1995 Subaru Legacy L wagon, 2002 Mountaineer, 1991 300TE wagon, 2008 Murano, 2007 R320CDI 4Matic 52K, some Hyundai, 2008 BMW 535xi wagon, all gone... currently
2007 Honda Odyssey Touring, 2014 E350 4matic