Gm 6.0 litre v v t v8 tow vehicle engine

Bob Bender · 10-02-2014, 11:36 AM

I have a (6.0) 2008 (2500 HD) and it pulls by wagon like it was nothing.

cad · 10-02-2014, 01:13 PM

Lyn,
I bought a brand new 2014 crew cab LTZ 4x4 6.0vvt in February, and it pulled like it had 200hp. RUN AWAY from the new 6.0 trucks. Before you buy, hook up your trailer and run it down the highway.
If you are pulling an enclosed trailer, it will not even be able to run in overdrive at 65mph on flat roads if you have a headwind without pushing it hard.
I tried premium fuel, e85, and had no luck.
With 4000 miles, I towed my 8000lb 24' enclosed from Omaha to Eddyville and got 7.04 mpg from Omaha to Des Moines while trying to run 70mph.
On the hills, the tach was pegged at 4400rpm trying to keep it at 65-70.
I traded down for a 2012 2500hd Duramax and havent looked back.

I got just under 11mpg running 75mph from Omaha to Denver for the ET Finals and the truck never downshifted.

In town/part highway empty, the 6.0 mpg was less than 11.5mpg. Duramax gets almost 18mpg on the highway empty.

Clark Doukas

Ed Carpenter · 10-02-2014, 01:34 PM

I have a 2001 1500HD with 200,000 miles on it. Towed to Columbus and back in May almost 3000 miles round trip. I have a 24' trailer 3000lb car plus scooter tools spares etc. Still going strong!

vetteboy · 10-02-2014, 02:58 PM

I had a 2000 with the 6.0 and pulled a 24’ enclosed trailer (9500 LBS) and it pulled ok. You will get 6-7 mpg. My dad had 2007 5.3 (3:73 gear) he pulled a 20’ enclosed trailer and that work ok. when he bought a 2012 5.3 it had 3:43 and the 6 speed trany it wouldn’t pull it. so he traded it in and bought one with the 6.2 (3:73 gear) and that has a lot of pulling power. If you plan on doing a lot of pulling get a Duramax. I have a 2011 duramax now and the difference is night and day. Once you pull with a diesel you will never go back. Brett

Tom Moock · 10-02-2014, 03:14 PM

I had a 2013 Chevy crew cab 6.0 2500 4 wheel 4.10, it made it to 5000 miles and I trade for new 1500, the 1500 5.3. With 3.46 gears pulled better than the 6.0 and got better mileage. Tom

Jeremy1374 · 10-02-2014, 07:34 PM

Quote:

Originally Posted by cad

Lyn,
In town/part highway empty, the 6.0 mpg was less than 11.5mpg. Duramax gets almost 18mpg on the highway empty.

Clark Doukas

Just out of curiosity what do you figure your avg MPG are? Is this a 4WD & what cab/box configuration is this?

Jim Cimarolli · 10-02-2014, 07:43 PM

I don't own one, but I have worked on my share of them. Sadly, I rarely ever hear anything good about a 6.0 when it comes to towing and mileage.

Alan Roehrich · 10-04-2014, 12:23 PM

Quote:

Originally Posted by Jim Cimarolli

I don't own one, but I have worked on my share of them. Sadly, I rarely ever hear anything good about a 6.0 when it comes to towing and mileage.

If the one Kevin had, '09 GMC 2500HD crew cab 4x4, is any indication, I'm sure you're hearing correctly. He never liked it. I could nurse 12MPG out of it with an open trailer on the Interstate, but it took some real work, and it never was nice to drive.

While I'm reliably informed you can work wonders with some PCM tuning, the results, I hear, put it on par with a stock 8.1.

Kevin sold the '09 GMC, and bought an '02 Chevy, same truck except 8.1 and an Allison, he's real happy now, where he was real annoyed before.

I've got an 03 2WD 3500, 8.1 and an Allison, I'm pretty happy with it stock. I'm sure my list of future upgrades will leave me thrilled.

Bob Mulry · 10-04-2014, 04:01 PM

Hi Guys,

My last fill up was at a Pilot Station and the Regular Unleaded 87 was $3.39 a gallon and the Diesel was still up at $4.09 a gallon...

That's 70 cents a gallon difference.....

Welcome to California........

Bob

SGSST109E · 10-05-2014, 05:49 AM

I bought a new 2500 2014 crew cab 6.0 with 4:10 gears to replace my 1999 suburban with a 454 that was getting tired. I tow a 28 foot trailer total weight about 9,000. I actually get better mileage in tow mode. Towing I get 8 to 11 mpg depending on terrain. When not towing I get 13.5 as an average. Straight highway by itself I have hit 15.4mpg.

10-02-2014, 11:36 AM	#1
Bob Bender VIP Member Join Date: Jan 2009 Location: Maryland Posts: 1,738 Likes: 1,604 Liked 462 Times in 92 Posts	Re: Gm 6.0 litre v v t v8 tow vehicle engine I have a (6.0) 2008 (2500 HD) and it pulls by wagon like it was nothing. __________________ Bob Bender 144 O/SA 2010-2012 National Record Holder

10-02-2014, 01:13 PM	#2
cad Senior Member Join Date: Apr 2009 Location: Omaha, NE Posts: 703 Likes: 206 Liked 93 Times in 52 Posts	Re: Gm 6.0 litre v v t v8 tow vehicle engine Lyn, I bought a brand new 2014 crew cab LTZ 4x4 6.0vvt in February, and it pulled like it had 200hp. RUN AWAY from the new 6.0 trucks. Before you buy, hook up your trailer and run it down the highway. If you are pulling an enclosed trailer, it will not even be able to run in overdrive at 65mph on flat roads if you have a headwind without pushing it hard. I tried premium fuel, e85, and had no luck. With 4000 miles, I towed my 8000lb 24' enclosed from Omaha to Eddyville and got 7.04 mpg from Omaha to Des Moines while trying to run 70mph. On the hills, the tach was pegged at 4400rpm trying to keep it at 65-70. I traded down for a 2012 2500hd Duramax and havent looked back. I got just under 11mpg running 75mph from Omaha to Denver for the ET Finals and the truck never downshifted. In town/part highway empty, the 6.0 mpg was less than 11.5mpg. Duramax gets almost 18mpg on the highway empty. Clark Doukas Last edited by cad; 10-02-2014 at 03:45 PM.

10-02-2014, 01:34 PM	#3
Ed Carpenter Live Reporter Join Date: May 2006 Location: Dripping Springs, Tx Posts: 2,710 Likes: 187 Liked 520 Times in 132 Posts	Re: Gm 6.0 litre v v t v8 tow vehicle engine I have a 2001 1500HD with 200,000 miles on it. Towed to Columbus and back in May almost 3000 miles round trip. I have a 24' trailer 3000lb car plus scooter tools spares etc. Still going strong! __________________ Ed Carpenter 2005 Chevy Cobalt A/SM Race Engine Development

10-02-2014, 02:58 PM	#4
vetteboy Junior Member Join Date: Mar 2011 Location: West Olive, MI Posts: 35 Likes: 7 Liked 2 Times in 2 Posts	Re: Gm 6.0 litre v v t v8 tow vehicle engine I had a 2000 with the 6.0 and pulled a 24’ enclosed trailer (9500 LBS) and it pulled ok. You will get 6-7 mpg. My dad had 2007 5.3 (3:73 gear) he pulled a 20’ enclosed trailer and that work ok. when he bought a 2012 5.3 it had 3:43 and the 6 speed trany it wouldn’t pull it. so he traded it in and bought one with the 6.2 (3:73 gear) and that has a lot of pulling power. If you plan on doing a lot of pulling get a Duramax. I have a 2011 duramax now and the difference is night and day. Once you pull with a diesel you will never go back. Brett

10-02-2014, 03:14 PM	#5
Tom Moock Senior Member Join Date: May 2004 Posts: 801 Likes: 1 Liked 10 Times in 6 Posts	Re: Gm 6.0 litre v v t v8 tow vehicle engine I had a 2013 Chevy crew cab 6.0 2500 4 wheel 4.10, it made it to 5000 miles and I trade for new 1500, the 1500 5.3. With 3.46 gears pulled better than the 6.0 and got better mileage. Tom __________________ Tom Moock 5704 STK

10-02-2014, 07:43 PM	#7
Jim Cimarolli Senior Member Join Date: Mar 2002 Location: Sulphur Springs Texas Posts: 743 Likes: 148 Liked 166 Times in 46 Posts	Re: Gm 6.0 litre v v t v8 tow vehicle engine I don't own one, but I have worked on my share of them. Sadly, I rarely ever hear anything good about a 6.0 when it comes to towing and mileage.

10-04-2014, 04:01 PM	#9
Bob Mulry VIP Member Join Date: Apr 2002 Location: Coarsegold, CA Posts: 1,016 Likes: 57 Liked 320 Times in 102 Posts	Re: Gm 6.0 litre v v t v8 tow vehicle engine Hi Guys, My last fill up was at a Pilot Station and the Regular Unleaded 87 was $3.39 a gallon and the Diesel was still up at $4.09 a gallon... That's 70 cents a gallon difference..... Welcome to California........ Bob __________________ Bob Mulry 7516 STK A & M Motorsports

10-05-2014, 05:49 AM	#10
SGSST109E Member Join Date: Jun 2007 Location: NJ Posts: 351 Likes: 62 Liked 126 Times in 61 Posts	Re: Gm 6.0 litre v v t v8 tow vehicle engine I bought a new 2500 2014 crew cab 6.0 with 4:10 gears to replace my 1999 suburban with a 454 that was getting tired. I tow a 28 foot trailer total weight about 9,000. I actually get better mileage in tow mode. Towing I get 8 to 11 mpg depending on terrain. When not towing I get 13.5 as an average. Straight highway by itself I have hit 15.4mpg.

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