2005 Suburban 8.1L mileage
December 5th, 2012, 11:14 AM
#11
CF Beginner
Join Date: Dec 2012
Location: N.Arkansas & N.E.Texas
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
In 2005 we had a 3/4 ton avalanche 4X4 with then 8.1L and might still have it today but wife & I wanted a 5th wheel. Traded for a 3500HD dually with the Duramax 6.6. Saved on the MPG but that gets offset some % with the gasoline verses diesel prices.
December 6th, 2012, 5:19 PM
#12
CF Beginner
Join Date: Mar 2011
Posts: 15
Likes: 0
Received 0 Likes
on
0 Posts
re read this thread and realized I didnt put ny rear in #s in. m running 4:10 i the rear... This thread is timely.... I did another 1K mile round trip road trip, unloaded. drove 452 highway miles on one tank used 34.5 gallons and averaged 13 mpg.I still love this truck. Just at 100K in miles.
December 26th, 2013, 6:55 PM
#14
CF Beginner
Join Date: Dec 2013
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
I realize this is an old thread but I'd thought I'd chime in. Our 2005, K2500, 8.1L gets 13 mpg on the highway if you travel 65 mph. Lower mph -> slightly higher mpg.
When we tow our Airstream travel trailer the mpg is closer to 9. Drops a little in the mountains, gets a little better on flat land.
4.10 rear end, automatic transmission.
on edit... our similarly equipped 1996, C2500, 7.4L, 4.10 rear end gets very similar mpg
When we tow our Airstream travel trailer the mpg is closer to 9. Drops a little in the mountains, gets a little better on flat land.
4.10 rear end, automatic transmission.
on edit... our similarly equipped 1996, C2500, 7.4L, 4.10 rear end gets very similar mpg
Last edited by nvestysly; December 26th, 2013 at 6:57 PM. Reason: added 1996 info
Thread
Thread Starter
Forum
Replies
Last Post
hoosierbuckslayer
Tahoe & Suburban
5
March 25th, 2010 11:31 AM
drew.wilson
Cavalier
0
September 15th, 2008 7:04 PM
