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Old 09-26-2022, 09:24 AM   #1
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GM gas engine towing

Anyone towing your 5th wheel with gm pickup with the 6.0L an if so,size 5th wheel an how it does? Thanks
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Old 09-26-2022, 10:28 AM   #2
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My friend had one pulling a 10500 lb fifth wheel. It was a 2018 2500 4x4 6.0 4.10 gears. He got rid of it after 6 months and bought a diesel. 6.0 is gutless. He had issues on any hill. Motor would scream but not go anywhere.
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Old 09-27-2022, 09:21 AM   #3
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I will add .........depends on 5th wheel weight. All my fifth wheel trailers have weighed in excess of 12,000 lbs (current one weighs over 15,000 lbs) and always towed with a diesel. Diesel has a lot of torque for uphill grades and exhaust brake for added braking both on downgrades and in heavy traffic.
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Old 09-27-2022, 09:33 AM   #4
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I pulled a small 5th wheel for two trips with a Chevy 6.0L gas truck. Either sell the 5er or go to a diesel engine truck I told my wife. So, I went diesel and will never go back. Night and day difference between the two engines. The gas engine will be around 2600 RPMs when pulling and the diesel in my truck is around 1600 RPM's. My towing speed on the interstate is usually around 65MPH.

The exhaust brake on my diesel engine is another bonus that really makes towing a pleasure in the mountains and seep hills.
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Old 09-27-2022, 01:11 PM   #5
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I don't think you're going to get the answer you want. If you only do short trips, live in the flatlands and tow an under 25' low profile 5er, you'll do fine. If you want a 5er over 25', high profile and plan trips in the mountains a 6.0 gas will be under powered and poor mpg. If you want to stay GM, you will need to go diesel.
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Old 09-27-2022, 05:52 PM   #6
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GM got rid of that 6.0 for a reason. The newer 6.6 gas engine has more power and much better cooling.

Here is an ok video. This person had the 6.0 and bought the new 6.6

https://youtu.be/PVd7p91rBjc
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Old 09-27-2022, 08:41 PM   #7
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Get a 5er under 25 feet and keep it light and you might get by with a 6.0L 1500, provided you have the right axle.

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Old 09-27-2022, 08:51 PM   #8
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I see you live in Colorado Springs, Colorado.

Good luck pulling a fifth wheel with that truck.
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Old 09-27-2022, 10:54 PM   #9
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What are your needs and expectations?

Quote:
Originally Posted by trailrunner View Post
Anyone towing your 5th wheel with gm pickup with the 6.0L an if so,size 5th wheel an how it does? Thanks
Yes, I've been pulling a 13000lb (loaded) 5th wheel for 8 years with mine.It's now 12'10" tall and 32' long. I only have 3:73 gears, wish I had the 4:10, which would make it better in the hills.

I've got around 80 000km to 85 000km or so towing miles. Would I like more power and torque? Sure, who wouldn't? Does it do the job? Yes, it does. Fuel consumption averages 25l/100km to 30l/100km from best case to worst case scenario.

I have had no mechanical issues other than manifold gaskets and 3 broken manifold studs. The rest is average maintenance, something any decent shop can perform, We can't say the same for the modern diesel.

It'll scream going up long grades over 5% loaded, but it's made to rev and can easily hold 5000RPM for minutes on end.

If you live in the hills I'd recommend a diesel. If you tow occasionally, a gasser. You won't win any races with this setup, but I can still pass any loaded semi uphill, and engine braking holds the speed downhill on 5% grades. On 6 to 8% grades a brake tap every now and then.
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Old 09-28-2022, 08:26 AM   #10
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the 6.6 seems to be a much better motor but the 6 speed trans is still the weak link. the gears are spread out and any downshift usually means a screaming motor. I traded my 6 speed GMC for an 8 speed ram and it is crazy better at towing my travel trailer. always in the right gear for the situation and with a couple extra gears a downshift often is just a few hundred more rpm not a thousand. the 6.6 and 6 speed will do the work. it just seems to work harder at it. If they paired that 6.6 with an 8 speed or 10 speed in a 2500 I would probably have one. IMHO
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Old 09-28-2022, 08:16 PM   #11
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6.0

thanks for the info,think i will look for the duramax with the 2500.
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Old 09-28-2022, 10:02 PM   #12
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thanks for the info,think i will look for the duramax with the 2500.
Duramax in a 2500 eats the payload. I'd recommend a 3500 with a Duramax if you can find one, it'll ride the same unladen but have plenty more payload.
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Old 09-28-2022, 10:11 PM   #13
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Agree with KDAuto.

The 250/2500 series trucks with the gas engine will have a respectable payload of over 3,000lbs. A 250/2500 series truck with the heavy diesel and all the heavy emissions will have a payload of just over 2,000lbs.

You will need a 350/3500 series truck in a diesel to get over 3,000lbs in payload.
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Old 09-29-2022, 10:05 AM   #14
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If they paired that 6.6 with an 8 speed or 10 speed in a 2500 I would probably have one. IMHO

GM announced on Monday this week that the 6.6L gas is getting the "Allison" 10-speed transmission as the standard transmission for 2024. Awesome upgrade and should really wake up the 6.6L gas engine.



https://www.chevrolet.com/upcoming-v...4-silverado-hd


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For 2024, the reliable durability of the Allison® 10-speed transmission is paired with both Silverado HD powerplants
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