My daughter drove home for the weekend and took the 1982 240D to the emissions test that was about three years overdue. She, and the rest of us thought it was exempt, as in the past they had no test plan for Diesels. Well, the only thing they tested for was "Opacity" of the exhaust. The allowable limit is 20%, and I have no idea what the units are or what that means. But the test results for this old machine came in at 0.1%! I was pretty impressed, even if I am ignorant of what it means. My wife and kids were not nearly as impressed as I was, so I thought I would share it with some of you guys.

Anyone know what that test mesures and what the 20% limit really means?

Jim

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Own:
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

Owned:
1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)