Thread: Duramax Owners
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Old 12-10-2004, 04:00 AM   #57
aljolleyjr
Montana Fan
 
Join Date: Dec 2002
Location: greenville
Posts: 220
M.O.C. #65
I'm interested to know what kind of chip gives you 5 mpg more, because I only get 10mpg towing at best.
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