RV.Net Open Roads Forum: Tow Vehicles: 6.6 Chevy gas engine

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tow Vehicles

Open Roads Forum  >  Tow Vehicles

 > 6.6 Chevy gas engine

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 4  
Prev  |  Next
Sponsored By:
artie2908

Central Vermont

New Member

Joined: 04/02/2013

View Profile



Good Sam RV Club Member

Offline
Posted: 12/13/20 10:02am Link  |  Quote  |  Print  |  Notify Moderator

on a somewhat related subject... I have often wondered why the 6.6gas is compared to the Ford F250 7.3 gas 10speed? wouldnt a more aligned comparison be with the Ford F250 6.2 6 speed? That is Ford's gas entry level in the F250 and is much closer in engine displacement than 7.3 vs 6.6 It would be apples to apples and yes, I realize you can get the 10 speed in the 6.2 gas version but it's only in the top trim level.

N-Trouble

NorCal

Senior Member

Joined: 12/02/2005

View Profile


Offline
Posted: 12/13/20 10:17am Link  |  Quote  |  Print  |  Notify Moderator

noteven wrote:

Is the trans behind the 6.6 an Allison?


No, only the Duramax gets the Allison. You wouldnt want to turn that trans with a small block gasser.


2015 Attitude 28SAG w/slide
2012 GMC 2500HD SLT Duramax
B&W Turnover w/Andersen Ultimate 5er hitch

Retired JSO

North Georgia Mountains

Senior Member

Joined: 01/28/2009

View Profile



Posted: 12/13/20 03:14pm Link  |  Quote  |  Print  |  Notify Moderator

I have a GMC Yukon 6.2, 3:23 rear gear and the 10speed transmission is flawless towing around 4,500 lbs, my golf cart and zero turn, and produces 13 mpg on the road at 65.





Grit dog

Black Diamond, WA

Senior Member

Joined: 05/06/2013

View Profile


Offline
Posted: 12/13/20 06:34pm Link  |  Quote  |  Print  |  Notify Moderator

N-Trouble wrote:

noteven wrote:

Is the trans behind the 6.6 an Allison?


No, only the Duramax gets the Allison. You wouldnt want to turn that trans with a small block gasser.


Duramax doesn’t have an Allison anymore either. It has the badge, but that’s about it.
Although I don’t follow your logic. Are you saying the Alli would rob too much power?
They used it behind the 8.1 successfully, which I think had less power than the new 6.6 gas.


2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29

frankwp

Calgary, AB, Canada

Senior Member

Joined: 09/07/2004

View Profile


Offline
Posted: 12/14/20 08:43am Link  |  Quote  |  Print  |  Notify Moderator

Retired JSO wrote:

I have a GMC Yukon 6.2, 3:23 rear gear and the 10speed transmission is flawless towing around 4,500 lbs, my golf cart and zero turn, and produces 13 mpg on the road at 65.


I have an Allison with an 8.1, which is only 340 HP and it works fine.


2010 Cruiser CF30QB
2003 GM 2500HD, crew cab, SB, 8.1, Allison

Dadoffourgirls

China, MI USA

Senior Member

Joined: 05/29/2003

View Profile



Posted: 12/14/20 10:10am Link  |  Quote  |  Print  |  Notify Moderator

Over 16k miles, 13 mpg avg. Best 18 mpg, towing travel trailer and goose neck (9000 and 16k lbs) averaged 8-9 mpg, towing aluminum 16ft stock trailer averaged 11 mpg. 13-15 mpg on average for most tanks. Reg cab dually.


Dad of Four Girls
Wife
Employee of GM, all opinions are my own!
2017 Express Ext 3500 (Code named "BIGGER ED" by daughters)
2011 Jayco Jayflight G2 32BHDS

gmckenzie

BC

Senior Member

Joined: 06/23/2014

View Profile



Posted: 12/14/20 11:08am Link  |  Quote  |  Print  |  Notify Moderator

artie2908 wrote:

on a somewhat related subject... I have often wondered why the 6.6gas is compared to the Ford F250 7.3 gas 10speed? wouldnt a more aligned comparison be with the Ford F250 6.2 6 speed? That is Ford's gas entry level in the F250 and is much closer in engine displacement than 7.3 vs 6.6 It would be apples to apples and yes, I realize you can get the 10 speed in the 6.2 gas version but it's only in the top trim level.


Because they are both new engines for 2020 model year?

Been a GM guy for years, but between the 10 sp, choice of rear axle ratios and the e-locker, I'm probably buying a 7.3L F350 in the spring.


2015 GMC Sierra 4x4 CC SB Max Trailer
2010 Cougar 30RKS

MFL

Midwest

Senior Member

Joined: 11/28/2012

View Profile



Good Sam RV Club Member

Offline
Posted: 12/14/20 11:26am Link  |  Quote  |  Print  |  Notify Moderator

gmckenzie wrote:

artie2908 wrote:

on a somewhat related subject... I have often wondered why the 6.6gas is compared to the Ford F250 7.3 gas 10speed? wouldnt a more aligned comparison be with the Ford F250 6.2 6 speed? That is Ford's gas entry level in the F250 and is much closer in engine displacement than 7.3 vs 6.6 It would be apples to apples and yes, I realize you can get the 10 speed in the 6.2 gas version but it's only in the top trim level.


Because they are both new engines for 2020 model year?

Been a GM guy for years, but between the 10 sp, choice of rear axle ratios and the e-locker, I'm probably buying a 7.3L F350 in the spring.


I agree, you have to compare new to new. Most just want to read about the latest/greatest.

The GM 6.0 6-speed and Ford 6.2 6-speed were apples/apples, and both good choices!

Agree, pretty hard to beat the Ford total package, in a new gasser!

Jerry





LITEPHIL

AZ

Senior Member

Joined: 07/02/2003

View Profile


Offline
Posted: 12/14/20 12:29pm Link  |  Quote  |  Print  |  Notify Moderator

Very interested in the 6.6 gas 3/4 ton. Yes we are all spoiled these days, I remember the family of eight going up to the Sierras in my 54 Carryall/Suburban (that I still have) in the 60s, towing an 18 ft Aljo trailer and a Honda 90 on the front and rack on the roof. Dad was dancing between Granny and second all the way up and had to pull over a couple of times to cool her down and we ended up putting the motorcycle inside the trailer but what a journey that was.
My 2019 RST Silverado tows great with alot of power with the 5.3 and that 8 speed but once you tow with a 3/4 ton,it's hard to go back to a half ton.
I would like a ten speed but the couple people that I've talked to say its a non issue pretty much.


2019 Chevy RST Silverado 1500
1954 Chevy 3100 Carryall 4x4
2002 Sandpiper T22
04 FXDL Harley

Grit dog

Black Diamond, WA

Senior Member

Joined: 05/06/2013

View Profile


Offline
Posted: 12/14/20 01:57pm Link  |  Quote  |  Print  |  Notify Moderator

LITEPHIL wrote:

Very interested in the 6.6 gas 3/4 ton. Yes we are all spoiled these days, I remember the family of eight going up to the Sierras in my 54 Carryall/Suburban (that I still have) in the 60s, towing an 18 ft Aljo trailer and a Honda 90 on the front and rack on the roof. Dad was dancing between Granny and second all the way up and had to pull over a couple of times to cool her down and we ended up putting the motorcycle inside the trailer but what a journey that was.
My 2019 RST Silverado tows great with alot of power with the 5.3 and that 8 speed but once you tow with a 3/4 ton,it's hard to go back to a half ton.
I would like a ten speed but the couple people that I've talked to say its a non issue pretty much.


Wow, you guys were the whos who of campers back then!
Must see pics of the Carryall though!

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 4  
Prev  |  Next

Open Roads Forum  >  Tow Vehicles

 > 6.6 Chevy gas engine
Search:   Advanced Search

Search only in Tow Vehicles


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2021 CWI, Inc. © 2021 Good Sam Enterprises, LLC. All Rights Reserved.