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Towed uphill for 70 miles, then back down (~200 feet to 5800 or so)...  so MPG actually came out better than I expected.. ended up something in the range of 12.5MPG...  

Affected a bit by 4High for the first few miles on the way back down, then 4 Auto for a bit....

 

Box Trailer, probably in the 3000 pound range.. full of Scout Gear..  

 

5.3L X31

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Edited by Chris Callanan
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According to the trailer app, 12.2 MPG.  I assume it's close, because the MPG on the truck is very close when hand calculated.  2019 4X4Silverado LTZ with 5.3, 8-speed and 3.23 gears,  the majority of that was pretty flat.  Only around 200 miles so far.  Pulling a 3 horse trailer that weights around 3700 empty plus two horses (another 1800-2000 lbs). Call it 5500-6000 lbs. 

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  • 2 weeks later...

1st time to tow with the “new truck”

‘19 Sierra Denali 1500

6.2L 10 spd trans 3:21 axle

have just over 2K on the Odometer.

personal best 18 mpg on daily 90 mile commute. 

’19 Forrest River Vibe 22RB 

29’ OAL ~6200 lbs with fresh tank full and fully loaded with all supplies/gear for a 3 day weekend 

I have towed this camper 1K to date. 

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100 mile Round trip to State Park

8.6 mpg 

~ 500 ft elevation change 

10 mph cross wind going to park 

15 mph cross wind coming back 

 

 

Same trip

previous truck/camper would get 10 to 13 mpg

”old truck” 

‘17 GMC Sierra 1500 SLT

5.3 L 8 spd trans 3:41 ratio 
Drive 27K  annually  Truck had just over 57K when traded. 

“old camper” 

‘10 Skyline Nomad 2511

29’ OAL 6100 lbs loaded for 3 day weekend

19 to 21 mpg on daily 90 mile commute.


NO I’m not sick of the “new truck”...yet

it said 17 mpg right on the window sticker.  I wanted (Really bc of the miles I drive annually I have to trade every 2-3 years) a new toy...and this is what I get! 

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2020 Trail boss 5.3, Towing 8x12 flat nosed enclosed motorcycle trailer with 800+ pounds CVO Road Glide..280 mile round trip 90% Highway 70-78 MPH... I got 9.9 MPG... My 5.7 Liter Tundra with 7 inch BDS lift with 35x12.5x20 used to average 12.2 with basically the same towing... I’m not really worried about MPG, But this truck definitely sucks gas down... 4800+ miles since brand new with all types of driving I’m getting 15.1MPG per the truck computer... 

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43 minutes ago, scotman623 said:

2020 Trail boss 5.3, Towing 8x12 flat nosed enclosed motorcycle trailer with 800+ pounds CVO Road Glide..280 mile round trip 90% Highway 70-78 MPH... I got 9.9 MPG... My 5.7 Liter Tundra with 7 inch BDS lift with 35x12.5x20 used to average 12.2 with basically the same towing... I’m not really worried about MPG, But this truck definitely sucks gas down... 4800+ miles since brand new with all types of driving I’m getting 15.1MPG per the truck computer... 

That's about where I am after 5000 miles. Slightly disappointed. I am lucky to get low 14's around city and I drive like a grandpa. 

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  • 1 year later...

2020 1500 LT, crew cab, 4x4, 3.0 I6 diesel, 10 speed with 3.73 final. I’ve averaged high as 25 to 27 MPG unloaded when driving on the interstate. Around 16 to 18 city driving. I bought this truck specifically for pulling a travel trailer. Loaded, the trailer weighs close to 5,800 lbs. I carry an additional 200 or so pounds of camping gear in the truck bed. Our longest trip pulling the trailer has been a little over 120 miles resulting in 13.2 MPG. On this trip I intentionally kept speed under 65 MPH. We have gotten as little as 11.5 MPG while driving 65  to 70 MPH on the interstate. Terrain that we travel, interstate and city,  is mostly rolling hills and valleys with a lot of steep grades. I’m very pleased with the trucks power and fuel performance. 

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According to the truck computer, I've averaged 16.5 mpg while towing a 21 foot Phoenix bass boat from Stuart/Martinsville VA area to Philpott lake and Smith Mountain lake. Boat, motor and trailer combo weigh approximately 4000 lbs. Truck is a 2020 Chevy LTZ with the 3.0 diesel.

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  • 3 weeks later...

2019 6.2 10 speed 3.23 gears. Pulling my fish house / camper around 7500 lbs loaded with about 500lbs of gear in the bed. I have been getting about 8.2mpg. That is my 2014 6.2 6 speed 3.2 gears in the pics which I also got around 8mpg. Most trips I put on about 600 miles round trip.  

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