Well the conventional wisdom was the snow wasn't going to hit that bad in the northern suburbs. Diesels are the perfect car for that kind of weather. I do know semi trucks used to idle constantly and still do in cold climates. Its just more validation though about how awesomely built older Mercedes Diesels really are.

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My Daily : 96 E-300 Diesel with 195,000 miles
Retired: 92 300D 2.5 T 345K miles and for sale
Retired: 95 E320 157K miles and currently parked with blown engine

Both retired cars are for sale as is my w124 shop inventory