Turbo Wing vs Aero sleeper MPG question

A "wing"? Like a cattle truck wing? If so I think you're actually going to be better off withOUT the wing.

 

with the wing you would prob come out the same for mpg. slightly decreased sleeper weight but it depends on what your comfortable with for sleeper room and overall condition of truck

 

Put a turbo wing on my w9 with 72inch aero sleeper,gave me .25 mpg increase.I pull 53' van.Avg fuel mileage 6.47 for the yr.

 

I know someone that had a 379 with the fiberglass fairing on top of the sleeper and cab for the factory and took that off and did a turbo wing cause he liked the look of it better and lost .2 mpg. I just put one on my truck but also did some computer tuning and my mpg stayed the same so I guess to wing offset the additional HP's

 

Sorry yes pulling a van

 

Last week in a truck wash in GA I spoke with a driver with the same truck as mine, a 379 Pete with 63 inch mid roof sleeper CAT engine, 13 speed and 3:36 gears on 22.5 LPs pulling a 53 ft van, and he said he gained 8/10ths when he put on the wing.... that sounds like a lot to me.... but at 2.50 a gallon even if you gained only 2/10ths it would return the investment in 6 months or a little less. If he is exaggerating by 50% the ROI is 3 months.