Cummins Diesel Forum banner

MPG difference between late generation 3.5 and the equivalent 4th generation trucks?

1099 Views 4 Replies 4 Participants Last post by  TurboDiesel6point7
So, say I had two trucks:

1. Stock 2009 2500 QC SB Auto 3.42 Unloaded
2. Stock 2010/11/12 2500 QC SB Auto 3.42 Unloaded

Which would get better fuel economy (if any), assuming both are driven lightly like grandpa? What MPG's should I expect?

Thanks in advance!

1 - 1 of 5 Posts
Well if it's any comparison My brother has a Stock 2007.5 3500 QC SRW with 3.73 running stock tires and he's gets about 15MPG on the highway. I have a Stock 2011 3500 CC SRW with 3.73 but I’m running 33" tires and I’m averaging 16.5MPG. So I’d say little to none between the two. but if your looking into a new truck I’d say go for the 2010-2012 but that’s just my .02$
1 - 1 of 5 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.