Riddle me this guys, the last 2 tanks I've added a healthy dose of Powerservice at each fill up thinking it would be good to combat the dry, winter fuel we have here.
Before the Power Service, I averaged 16.85 MPG on the driving I consistently do with my 6.0. The last 2 tanks, I'm in the 15's on both tanks. This current tank I decided not to add in Power Service, and my mileage is back up into the high 16's again.
What gives? The only variable during that time frame is the Power Service. Driving conditions, driving route, driving style are very consistent, and not playing a role into the mileage fluctuation.
Ideas on why Power Service is reducing mileage in my 04' 6.0?
Edit: BTW, all tanks calculated from are on Winter Fuel. It's not a Winter Fuel thing
Before the Power Service, I averaged 16.85 MPG on the driving I consistently do with my 6.0. The last 2 tanks, I'm in the 15's on both tanks. This current tank I decided not to add in Power Service, and my mileage is back up into the high 16's again.
What gives? The only variable during that time frame is the Power Service. Driving conditions, driving route, driving style are very consistent, and not playing a role into the mileage fluctuation.
Ideas on why Power Service is reducing mileage in my 04' 6.0?
Edit: BTW, all tanks calculated from are on Winter Fuel. It's not a Winter Fuel thing
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