Thread: ZL1 MPG?
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Old 05-30-2013, 09:55 AM   #100
djnice
 
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Drives: 13 ZL1 SIM, 99 Z28 Black
Join Date: Feb 2013
Location: Spokane, WA
Posts: 708
I think this is a good topic because building power efficiently is worth while.

I am interested that the modded cars get better mpg. Are they running leaner? Is it possible the computer is off....have you checked with fill ups?

I know with my duramax when I run a tune it throws the computer off.
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