I have about 39k on my truck and have never pulled anything to speak of. This weekend I bought a boat (Older boat, pretty heavy) and had to pull it a ways home. Man what a difference! Pulling the boat obviously helped to break the motor in. This thing really came alive this weekend. Much faster get up and go and responsiveness. I love my truck.

 

You will find that on an ongoing basis. Even with my truck (140k on the clock), after tooling around for awhile, pull a good heavy load, seems to clear things up and then she really scoots again.

 

The injector tips get gummed up just driving around empty. Pull a load and get some good heat on them to burn em off and they start working as designed. I have found a good ride on the highway at 2300+ RPM for a couple hours helps too.

BTW with the G56 2300 only = 75 or so.

 

I was told when i bought mine new to pull something heavy to break her in right away. I did and have nothing to compare it to but man she still runs great. I do pull heavy on a regular basis and have ever since new. These engines are made to work not be babied.

 

Man I'm in trouble my truck never towed and th most weight in the bed was 4 pieces of airline luggage.

 

I have a few trailers that need to be towed. I won't charge you for towing them for me.

 

I get 12mpg towing my 9K 5th around on flat ground, but after a day of pulling thru the Smokeys, now I seem to be getting about 14mpg, and that includes the mountains??

 

Wait til you hit 100k, it will really run after that!

 

Coolride, it's funny you mention that. The best towing mileage I have ever made was a trip from upstate SC to Gatlinburg TN through the mountains. I got 13 mpg towing my 9600 lbs camper. I usually average 9 - 11 towing that camper. Go figure.