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Old 11-04-2012, 02:18 PM
zero4588 zero4588 is offline
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Location: California
Join Date: Aug 2004
Posts: 63
Mein Auto: 328 Mspo, 958 Piggy, etc.
Originally Posted by quackbury View Post
"Hitting it hard" has nothing to do with it. It takes a lot of energy to accelerate a 6,000 pound vehicle from a dead stop to 20 or 30 mph, a process which you are repeating over, and over, and over again.

It takes exponentially less energy to keep that same 6,000 pound vehicle rolling at 75 mph down I-80. Why should this be surprising? Did someone tell you that diesel repealed Newton's Laws?

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I agree that the diesel blend and weight of the car may have to do with the mileage (e.g., diesel-engined semis usually get around 5 or less mpg). Or maybe bring your concern to the dealership to have the car checked - it wouldn't hurt.
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