Using ethanol free gas.
I have a 2014 Ram 3500 w/ 6.4 Hemi. I have been using the pure gas which is 100% ethanol Free. While it more $$ I get around 4MPG in the city and about 6 MPG on the highway, your mileage may vary. ...
Forum Discussion
Turtle n Peeps wrote:
E free gas will give you about 4 to 5% difference in mileage.
If anybody tells you appreciably more their math is wrong or their testing is flawed.
E gas will always give you more power because of the O2 and cooling effect it give your engine.
If you only drive your vehicle in a laboratory that MIGHT be true, however in the real world we have to deal with water-entrainment, sensors thrown off by water, phase separation and the further increased inefficiencies after phase separation occurs.
Even the EPA has acknowledged that E10 gasoline can (at 70 deg. F.) hold 50 times the water in solution than E0 gasoline can. At just 0.5% water-entrainment phase separation begins.
Bottom line, you cannot lose just 4% or 5% in mileage when you have nearly that much water in your tank.
