Gasoline Mileage improvement after break in.
This is the first vehicle that I have ever owned, and I have owned many, that actually improved its fuel mileage a lot after the first 5,000 miles. It is a Silverado 2500HD with the 6.0 gasoline engi...
Forum Discussion
TomG2 wrote:
I think most of the ecoboosts are getting upwards of 26 mpg. At least that is what the salesman said.
:R
