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Old 05-16-2013, 08:36 AM
Mr._Graybeard Mr._Graybeard is offline
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Location: Wisconsin
Join Date: Oct 2011
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Mein Auto: '95 540i, '95 525it
Originally Posted by 3star View Post

No ignition system in diesel. Fuel is ignited via compression. The fuel pump is mechanical so yeah it wouldn't need a battery or altenator to run.

Diesel is pretty amazing, they get a bad rap in the west, but the diesel cycle is actually significantly more efficient than a gasoline engine

After the old diesel engines of the early-mid eighties, though, Mercedes started using electronics in their diesel engines' fuel management. The cars became less thirsty (the old model 617 diesels got only mid-20s for mpg) but durability fell off too.

I've been checking out the Benz Bluetec diesels -- 37 mpg on the highway in a big car. But the engines are complex and seem to be designed to discourage shadetree work of any kind. I'd much rather work on an M60.
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