2018 Silverado 6.0 or 6.2

[Jacoby]

9 hours ago, flyingfool said:

i don't know what to say,  there really isn't much change in mpg,  its a 2012 2500 Sierra with the 6.0. and 6speed. i'll have to check the rpo for the rear gearing , I would be willing to bet it's in the 4.10 range..

Then this toyhauler of yours must be made of card board and weigh almost nothing. There is no way you’re pulling a multi thousand pound load and only losing 1 mpg especially with a gasser. Gearing will have nothing to do with it. I regeared my 1500 from 3.42 to 4.56 and while I gained mileage back there is still a 4-5 mpg difference when I’m towing and not towing.   

[KARNUT]

Then this toyhauler of yours must be made of card board and weigh almost nothing. There is no way you’re pulling a multi thousand pound load and only losing 1 mpg especially with a gasser. Gearing will have nothing to do with it. I regeared my 1500 from 3.42 to 4.56 and while I gained mileage back there is still a 4-5 mpg difference when I’m towing and not towing.   

Yes it’s hard to believe. I did have a 3/4 ton 460 C-6 410 gear Ford that got 8 miles to the gallon. That would be hauling weight in the back or empty. I kept in one month.


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[Donstar]

10 hours ago, dukedkt442 said:

A 4500 lb load a dozen times a year?  My '84 S15 can do that (and has up and down the East coast and across NY) with a 110 hp V6.  You'd be fine with a 5.3.  I do over 20 mpg on E85 with a 5.3, which no 2500 can come close to touching.  Either a 6.0 or a 6.2 is using a lump hammer for finish carpentry, and has more to do with ego than ability.  It's a couple of sleds (you know, things you can lift and move by hand), not a car transporter.

I often pulled significant loads long distances in the 70's and '80's with similar power.  It definitely gives you a different perspective on the power available in today's trucks! 

[L86 All Terrain]

As someone who owns both, I would choose the half ton on a daily-driving basis 11/10 times over my 2500. Your capacities don't even justify a half ton, you would do fine with a Colorado/Canyon, but I am not telling you to do that lol. 2500 is way over kill. Then you have a large and stiff riding truck to live with on a daily basis. They aren't bad, but the 1/2 tons are SOOOO much nicer to drive and maneuver in town/city. I haul up to 8k behind my half ton and it handles it well. After towing 5k for 1200 miles a few months back with the 2500, I would take the 1/2 ton if I did the trip again. Yes, the 6.2L takes premium, yes it is still much cheaper than buying a 6.0L

 

I have stock tires on the 2500, 33" 10 ply on my 6.2L. 2500HD= 10-12mpg. 1500 = 17-20mpg (depending on driving style).

 

Do not buy a 2500 unless you need a 2500. If you put those sleds on a sled deck and trucked up a snow cover mountain logging road to the back country, then yeah go 2500. 

[Libtech29]

26 minutes ago, L86 All Terrain said:

As someone who owns both, I would choose the half ton on a daily-driving basis 11/10 times over my 2500. Your capacities don't even justify a half ton, you would do fine with a Colorado/Canyon, but I am not telling you to do that lol. 2500 is way over kill. Then you have a large and stiff riding truck to live with on a daily basis. They aren't bad, but the 1/2 tons are SOOOO much nicer to drive and maneuver in town/city. I haul up to 8k behind my half ton and it handles it well. After towing 5k for 1200 miles a few months back with the 2500, I would take the 1/2 ton if I did the trip again. Yes, the 6.2L takes premium, yes it is still much cheaper than buying a 6.0L

 

I have stock tires on the 2500, 33" 10 ply on my 6.2L. 2500HD= 10-12mpg. 1500 = 17-20mpg (depending on driving style).

 

Do not buy a 2500 unless you need a 2500. If you put those sleds on a sled deck and trucked up a snow cover mountain logging road to the back country, then yeah go 2500. 

Appreciate the info. Do you have pictures of your trucks? Does your 1500 still sit lower than your 2500?

 

My only issue with the 1500 is I don't know how much I trust the AFM. I've never owned a truck that has that. From what I've heard, the 6.0 is bulletproof, and when I upgrade my trailer and get another sled for my son, it sways me in that direction. But I'm not set on that, and if the 1500 with AFM is reliable, then I could give it some more consideration.

[wforrest08]

12 hours ago, flyingfool said:

i don't know what to say,  there really isn't much change in mpg,  its a 2012 2500 Sierra with the 6.0. and 6speed. i'll have to check the rpo for the rear gearing , I would be willing to bet it's in the 4.10 range..

My 01 2500HD reg cab 6.O 4L80E 4.10 leveled with 285/70/17 all terrains is the same.

 

obviously somebody has never owned one... 

 

I get the same 10.5 mpg empty, pulling my empty 20’ steel tilt bed car hauler (trailer weighs over 2k), pulling my hauler with a car/light truck/tractor on it, pulling my utility trailer empty or with the sidexside/mower on it, winter time with Vplow and 600# of counterweight in bed, ect.

 

If I get over the 6500# range on the trailer (not including the trailer weight) I start to see a decrease in mpgs & I’m also in the Midwest so it’s flat around here I’d imagine if I was pulling grade all day long I’m sure it would be different.

 

Did a experiment when I helped my buddy moved 3 hours away to the river. We loaded truck & car hauler with his shop stuff. 2k+ of SnapOn tool box and tools 2k+ worth of shop equipment 1k of auto parts 500+ worth of stuff in the bed of the truck. Filled up before leaving & before return trip with empty trailer. Went out a couple months later empty truck for a visit filled up at same stations both ways. Hand calculated both trips within .5 mpgs 

 

Have another buddy with a 2000 non HD 2500 ext. cab 6.O with 3.73s he says his is always right around 12mpgs and I believe he’s riding on 265/16 all terrains

[1SLOW1500]

you are mostly buying the tow capacity on and better trans and axles with the 2500. as you are comparing 6.0 to 6.2 they are very different engines. one is LS based and the other is gen v LT based. I love the LT and it is great but in a work horse there is a clear advantage to the 6.0. parts are dirt cheap as well and performance options. I would go 6.0 2500 for the better truck then increase the engine with power adder or tune header and cam. 4xxhp and MUCH cheaper then the 6.2 parts. we can take the 6.0 engines much  father in power on the fuel and even then fuel side is super cheap compared to direct injection parts. 

If you do not need the work horse the 1500 in a 6.2 is also great but limited in features as of now. 

From what you say I would say you are a 1500 6.2 man. and when that gets old add power.  

[16LT4]

Don’t forget the 2500 limits you with regards to which roadways you can drive due to GVWR. No parkways for you!

 

For what you need to tow, a Colorado or a 5.3 would be fine unless your goal is to pad GM’s bottom line. 

[2018GMC]

On 7/7/2019 at 10:52 PM, Z2Z said:

I was in your same situation and went with the 6.2. I couldn’t be happier with my decision. When I purchased, I was towning my quads around but now I have a RZR. It tows great from Phoenix to Flagstaff(almost a 6000’ climb). Probably about 5500-6000lbs in total with all my camping supplies. I hook up the trailer and go camping once a month.

 

I test drove some HDs, including Duramaxes, they were really just not for me. Being my daily driver, I wanted something that was a bit lighter on its feet. 

 

Purchased new about 18mo ago and have almost 40k mi on it now. You won’t be disappointed.

 

What kind of towing mpg are you getting?

 

i have a 16’ single axle v nose enclosed. 3k - 3.5k loaded. I get 8 - 9 towing from Phx to flag. If I’m on flatish roads like to the north rim I can get 11 - 12. 

[Z2Z]

18 hours ago, 2018GMC said:

What kind of towing mpg are you getting?

 

i have a 16’ single axle v nose enclosed. 3k - 3.5k loaded. I get 8 - 9 towing from Phx to flag. If I’m on flatish roads like to the north rim I can get 11 - 12. 

I’d say that I get about the same as you. Honestly, I don’t think that the weight is the biggest factor. I also use this trailer for work and even when is has just a few tools in it, I get about 12mpg on flat highway.

 

I will say that when I had a diablo tune on it, I got 1-2 better MPG in most situations.