Went to dealer monday, gottruck back today.They replaced heat/ac duct accuator,flashed computer,tighten up running boards,ordered one new key farb. I now have a fuel economy light on the dash. I have never seen this indecator before,very strange.

 

o9 had it in the cluster but it was not on in the software...

 

They 'flashed computer" installed new software updates.

 

Sinse the dealer flashed truck gas mileage has gone up 2.5 mph.

 

Real MPG, or as reported by the vehicle computer?

Rob

 

I have been tracking my mpg since I got my 09. the computer mpg and hand calculated has been within 0.5 mpg or less of each other.

 

Not mine. In the summer it is usually off by a full mpg, winter it is not as bad. The computer always reports more mpgs than I actually get.

 

So your real (calculated) MPG increased by 2.5 mpg after the dealer flashed your truck? Wonder what was changed in that update to make such a major difference?

Rob

 

Its by trucks computer, have not had a chance to do manuel evaluation.

 

Think you have me confused with someone else. That is not what I said. I said that mpg reading from the computer is +- 0.5 mpg of when I hand calculate. That is fill the tank, figure the miles driven, and do the math. I get right at epa rating 13/19. No flashes the dealership has done has changed the mpg.