2008 GMC Sierra
Post Fiend
Joined: Jun 2001
Posts: 5,228
Likes: 5
From: Running Springs CA
Diesels always get better mileage if they are not pushed too hard. It is the basic way a diesel engine works, super high compression, no throttle, super lean mixture at low power settings. The question is if the extra $5000 in price is ever going to pay off in the number of miles you are going to drive it.
Jim
Jim
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