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1500, 2008, 2010, 2011, 373, 62, 62l, 62mpg, denali, gas, gmc, improvements, max, mileage, mpg, nht, rating, sierra

6.2 mpg

(Multi-page thread 1 2)
thunderwagen on Oct 1, 2010
Oct 12, 2010 01:51 AM
by bigboyblue Go to last post
11
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Rhino79 on Aug 15, 2009
Aug 28, 2009 11:07 PM
by tk-mpl Go to last post
16
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GMT 900 Trucks General Discussion
jsawduste on May 19, 2009
May 19, 2009 09:40 PM
by jsawduste Go to last post
0
517
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bluestang50 on Oct 9, 2008
Oct 13, 2008 07:18 PM
by 726.0chevelle Go to last post
20
36,324
GM Engine & Exhaust Performance
jmauld on Jul 17, 2008
Jul 19, 2008 12:53 PM
by L7 Sierra Go to last post
4
963
GM Engine & Exhaust Performance
treyZ28 on May 1, 2006
May 3, 2006 07:40 AM
by ZR1 DREAMING Go to last post
7
870
GM Engine & Exhaust Performance
TG02Z71 on Jan 23, 2006
Jan 24, 2006 02:30 PM
by CHAGO Go to last post
10
2,374
GMT 800 & Older GM General Discussion
timvan on Aug 20, 2005
Aug 27, 2005 04:35 PM
by ngianop Go to last post
25
26,760
GM Engine & Exhaust Performance
tbyrne on Aug 22, 2004
Aug 31, 2004 09:47 PM
by tbyrne Go to last post
32
4,078
GM Engine & Exhaust Performance
SierraSlow on Jul 5, 2004
Jul 13, 2004 04:25 PM
by Allgonoshow Go to last post
24
2,490
GM Engine & Exhaust Performance
hodgeee on Jun 7, 2003
Jun 8, 2003 07:51 AM
by hodgeee Go to last post
6
704
GM Engine & Exhaust Performance


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