Tomorrow, I am buying a 2015 3500HD with the 6.0 engine. While towing, should I expect any difference between it and the 6.0 in my current 2004 2500HD?Will I still be huffing and puffing up the long grades?Bruce

I'm going to say it will do noticeably better but you will still have to get the RPMs up on some of the grades. You will also be gaining two more gears going from an '04 to a '15. Congrats on the new truck by the way. :)

I have a 2015 for a work truck, as long as the rpm' s are up it will pull a hill ok. Had about 12k behind it last week and tach was at 5500 for along time but it got the job done.

Those high RPMs just scare me. I wish I could afford the diesel Bruce

I had a 2007 and now have a 2013 Silverado 6.0. Don't expect a huge improvement in power, or fuel mileage for that matter. The six speed is a big improvement and will help you keep the engine in a good power band. Small engine, lots of rpm's.

You're going from 300hp/360tq and a 4 speed auto to 360hp/380tq and a 6 speed auto.You're also getting a new chassis and a much better interior.That said, it's still a gas engine with no turbo, and will use higher RPM to climb grades. No biggie.

Chevy 2004 6.0 vs. 2015 6.0 | Good Sam Community

27 Replies

Brisk
Explorer II
Feb 17, 2015
PAThwacker wrote:
CampingN.C. wrote:
DANG....I'm I the last one still rocking the OBS 6.0 gasser on here? I guess I need to start shopping.

I'm on here with the same specs rocking a 4 seater suburban.

I am still reppin' my '02 with nearly 180k on it!!
PAThwacker
Explorer
Feb 15, 2015
CampingN.C. wrote:
DANG....I'm I the last one still rocking the OBS 6.0 gasser on here? I guess I need to start shopping.

I'm on here with the same specs rocking a 4 seater suburban.
Need-A-Vacation
Explorer
Feb 14, 2015
nomad297 wrote:
I like it. Faster off the line. Close to 800 RPM less at 65mph. Both trucks have/had the 4.10 rear.

Bruce

SWEET! Sounds like you have a new tow beast! Congrats!

Don't forget to update your signature!
ksss
Explorer
Feb 13, 2015
I started towing with my '15 3500 6.0. I was happy with the way the '12 pulled with 3.73's even with running larger tires. The 4.10 with the larger tires, seems to be much closer to ideal. I can see why they removed the 3.73's from the option list (perhaps you could special order them but it not listed as an option). I appear to get the same MPG with this as I did with the '12, but it pulls even stronger, especially from a stop with heavy loads.
CampingN_C_
Explorer
Feb 13, 2015
DANG....I'm I the last one still rocking the OBS 6.0 gasser on here? I guess I need to start shopping.
kw_00
Explorer
Feb 12, 2015
Did u buy the truck? Just wondering how it turned out.
APT
Explorer
Feb 12, 2015
Those short gears will really pay off when towing too. Enjoy! I love mine.
nomad297
Explorer
Feb 12, 2015
I like it. Faster off the line. Close to 800 RPM less at 65mph. Both trucks have/had the 4.10 rear.

Bruce
nomad297
Explorer
Feb 07, 2015
Thank you, everybody. I now have a very good idea of what to expect.

Bruce
kw_00
Explorer
Feb 07, 2015
Sorry got ahead of myself... Was in 4th due to slower traffic from the holidays...that caused me to hit 4th on the hill and keep it there for a while since traffic was so heavy. Usually u can keep it in 5th, but then u always get somebody goin 65 or slower Infront of u and u goto drop when the hill hits to keep that speed. On my older 02 model I had to run the hills a lot.... This newer model is easier to keep up and have power to spare to pass.