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08-03-2022, 03:23 PM #21
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08-03-2022, 04:21 PM #222021 398M Full Body Paint 8k axles. LRH tires. Disc brakes.
Two bathrooms, no waiting 155 fresh, 104 black, 104 grey 1860 watts solar.
800AH BattleBorn Batteries No campgrounds 100% boondocking
2020 Silverado High Country 3500 dually crewcab Duramax Allison
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08-03-2022, 05:08 PM #23
Assuming the OP is in the USA, Chevrolet.com Build/Price website currently shows this for an LTZ trim:
2022 Silverado 2500 HD LTZ Crew Cab 4WD Standard Bed
6.6L V8 Gas, 6-Speed, $58,895*
6.6L V8 Duramax Turbo-Diesel, 10-speed Allison, $68,785*
* MSRP excludes tax, title, license, dealer fees and optional equipment. See dealer for details.
I’m well aware “some/a lot” of dealers are asking more than MSRP these days, but this gives a buyer a starting point for comparing gas vs diesel if buying new.2010 Tundra SR5 DC 5.7L 4x4
2020 Imagine XLS 22MLE
Andersen WDH
Dexter E-Z Flex Suspension Kit
2018 Rockwood Mini Lite 2104s
2014 Jayco x17z Hybrid
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08-03-2022, 05:10 PM #24
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- Jun 2019
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- Franklin,MI
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I can offer numbers. My 2013 Suburban 2500 got 7.2mpg with the 6.0L gas pulling a 2500RL at 67-68mph. It was slightly lower or higher depending on winds. Note the suburban had a 39 gallon tank so range anxiety wasn’t an issue but I totally understand how that would feel with the OPs 26 gallon tank.
My 2018 F-250 with a 6.7L and 35” AT tires averages 10.5 and I tow at 69-70mph now. Combined with a 34 gallon tank it has excellent range. I suspect a GM or a new Ford with the 10 spd would get about 12mpg with my trailer and stock tires.
I will also say the part that the OP wants to hear, the diesel never downshifts, once it’s in 6th on the highway it never shifts. Our 6.0L cruised at 2300rpm and wanted to be at 3100-3200 rpm with a headwind or slight hill, a big hill and it wanted to be at 4100rpm and you couldn’t have decent conversation. It was an older 2013, I’m sure the newer ones are quieter. The diesel will pull the trailer at 1200-1600rpm and it’s silent.
With that said, modern diesels and their emissions have become a lot more reliable in the last 5 years, but they still don’t like running errands or idling, they need to be worked to stay clean. If I was gonna DD a heavy duty truck I would by a gas one, preferably the Ford 7.3L. Or the GM truck once the 10spd is available.
2018 F-250 6.7L Leveled, 35’s.
2019 Imagine 2500RL, 640w Solar, Lion UT1300s, 3000w Inverter
CRE3000, Sumosprings
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08-03-2022, 05:35 PM #25
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08-04-2022, 07:11 AM #26
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- Mead, CO.
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Where did OP say they had the 1500? Tongue weight on those 2800's are over 1000lbs, not what is stated in any brochure for them.
Edit...I did a google on the 6.2 engine. Ya, thats a 1500, my bad. The 2800 would be too much IMO. But by towing capacity specs its in the range. My diesel is older than what you are looking for i am sure but it does make a huge difference in towing going from a 6.0 gasser I had.Last edited by morphrider; 08-04-2022 at 07:18 AM.
2019 Imagine 2800BH “Chaos”
2009 Dodge Ram 2500 6.7 Cummins Power “Nessy”
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08-04-2022, 07:31 AM #27
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Reason for post was to see how big or small an increase in mpg would be between hypothetical 1/2 ton gas to 3/4 ton duramax.
Fuel savings and price are not 1st priority. Rather would like to see what to expect as part of this decision. The comfort factor and very very small fuel range are largely driving this decision, along with some really long mile trips planned. Seems like the 1/2 ton is the wrong tool for the job when using travel trailer once a month or so, with some few thousand mile trips thrown in twice a year.
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08-04-2022, 07:38 AM #282010 Tundra SR5 DC 5.7L 4x4
2020 Imagine XLS 22MLE
Andersen WDH
Dexter E-Z Flex Suspension Kit
2018 Rockwood Mini Lite 2104s
2014 Jayco x17z Hybrid
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08-04-2022, 11:14 AM #29
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08-04-2022, 04:47 PM #30
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I don't think a diesel is the end all be all of towing. Especially with the new 10 speed transmissions. My father in law has a 2021 gmc 3500 diesel that he tows a 35' 5th wheel with. Gets 11.5 mpg towing. I've got a 2022 f350 with the 7.3 gas. I tow a 33' 5th wheel and get 10.5. We go on many trips together through mountains of vt and nh. My truck never drops below 6th gear and never over 3200 rpms. My father in laws truck has been in the shop 3 times for Def related issues that put the truck in limp mode. The last time it was at the dealer for 3 1/2 months. I get 13.7 mpg hand calculated around town. Today I drove almost 200 miles of highway and calculated 16.5. Cruise set at 74. It will take a lot of miles to make up the $9k difference for the diesel.
Breakaway Switch Question
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