[roosterk0031]

Just for fun I exported Cobalt XFE log to spreadsheet and sorted by E %, some cells didn't transfer well so lost some data but here's what made it.

E0 42.3 mpg over 27,000 miles
E10 39.7 mpg over 41,500 miles
E29-34 36.4 mpg over 5700
E35-42 36 over 4800
E45-55 37.2 over 7400


Based on BTU's and using the 42.2 baseline of E0
E10 should do 40.6
E30 should do 37.7
E40 36.2
E50 34.8

I kind of suspect my E0 base line might have a seasonal advantage. Most of my blending has been between September and April so will delete everything not between those months for all blends and see how it changes.

EDIT: Cleaned up log before exporting and got more data thru, and deleted some 40 mpg + high ethanol blends as errors.