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Hey I’m looking at getting a new travel trailer. I would like to hear what everyone is getting for mileage and what they are towing. I am curious how much weight affects the mpg or if it is all aerodynamics of the trailer. My tow vehicle is a 2012 gmc 3500 6.0

 

 

 

 

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It will also depend on your gearing... being 3500, you should have 4.10?

I have 3.73s and it won't be a good comparison...but wind resistance is more an issue (while rolling) than weight in my experience.

2012 2500hd 6.0l CCSB 4wd



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It will also depend on your gearing... being 3500, you should have 4.10?

I have 3.73s and it won't be a good comparison...but wind resistance is more an issue (while rolling) than weight in my experience.

2012 2500hd 6.0l CCSB 4wd






Yes they are 4 10s. I though they only came with 4 10?


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2012 2500hd could have either...I have 3.73s...

2012 2500hd 6.0l CCSB 4wd



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2012 2500hd could have either...I have 3.73s...

2012 2500hd 6.0l CCSB 4wd






What are your rpms at 60mph?


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What are your rpms at 60mph?


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At 60? Ummm, under 2k, probably closer to 1800? I'm only 2k-ish at 70mph.

It been a while since I actually paid that close of attention to it...and I drive it nearly every day!

2012 2500hd 6.0l CCSB 4wd



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At 60? Ummm, under 2k, probably closer to 1800? I'm only 2k-ish at 70mph.

It been a while since I actually paid that close of attention to it...and I drive it nearly every day!

2012 2500hd 6.0l CCSB 4wd





Ok I’m definitely higher then that


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Let’s hear some towing mpg and what your towing! Weight/type of trailer


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9-11mpg with a trailer.  I got 10mpg with my 6.0 pulling about 7000lbs of trailer and Massey Ferguson tractor. 

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3.73's turn 2000 RPM's at 70. With the 5.3 engine, I get about 8 pulling a 30ft TT. I get about 9 pulling the 24ft boat, and about 10 pulling the 16ft enclosed trailer.  Depending on how they are loaded, all weigh in between 6500 and 10,000 pounds.

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3.73's turn 2000 RPM's at 70. With the 5.3 engine, I get about 8 pulling a 30ft TT. I get about 9 pulling the 24ft boat, and about 10 pulling the 16ft enclosed trailer.  Depending on how they are loaded, all weigh in between 6500 and 10,000 pounds.


I wonder if the 6.0 in a 3500 with 4 10s would be very close to that


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