Cause of poor gas milage w/5.7L MDS engine?

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#11

02-21-2012 | 03:48 PM

PokerMunkee

Professional

Joined: Aug 2010

Posts: 105

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From: Woodland Park, CO

My D (3.55 gears) with the 5.7 and AWD gets 14MPG in town and 17-19 on the highway. Running the 87 Predator tune. Thank heavens the wife doesn't drive it much!

Time to convert it to CNG

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#12

02-22-2012 | 08:52 AM

tootallll

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Joined: Dec 2011

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They both are using the same gear ratio.

Poker, what Diablo Tuner are you using?

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#13

02-22-2012 | 01:44 PM

1969CoronetR/T

vaffanculo

Joined: Oct 2008

Posts: 7,957

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From: Pittsburgh, PA

He is using the Diablo Predator.
FF

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