Back on topic, I am not sure if this has been posted. But here is where they run the Colorado/Canyon on an abbreviated loop. Towing a 6100 pound horse trailer. They did mention they were bucking the wind.
The diesel got 12.7 MPG.
The V6 gasser got 8.7.
So, percentage wise, the diesel still is about 50% more efficient than the gasser.
Interesting that the EcoDiesel, pulling a heavier trailer, still gets better MPG than the Duramax.
And the 6.2, pulling a heavier trailer, gets better MPG than the V6 mid size.
I wonder how bad the wind was.
FLT Test
