75-76 300d mpg - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 02-01-2007, 12:28 PM Thread Starter
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75-76 300d mpg

Hi -

I've been looking at a couple of these b/c I like the old style w114-5 car but wanted the bigger engine. That said, what kind of mpg should one hope for out of such a car? I do mostly city driving, unfortunately.
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post #2 of 3 (permalink) Old 02-01-2007, 09:06 PM
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For city diving, depending on how bad the traffic is I would say 20 MPG to be conservative and assuming the engine is in good shape.

1977 - W116 - 6.9
1974 - W115 - 240D /8 - 4(M) OM617.910 + Turbo + 300D FW - Completed 7/8/10
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post #3 of 3 (permalink) Old 02-01-2007, 10:49 PM
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i range from 18 city to 20 mixed. i managed a 60 mile run at 25 mpg at 65 mph. the distance is not truly enough to be exact but i employed as much scientific method as possible with 59.5 of the miles on the highway. on B20 if your curious.
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