Last tank of E15 I saw a calculated 58.1 mpg with the HAH, good but not unknown to me in past periods of warm weather.
Refilled yesterday with 9.9 gallons of E15.
Sixty miles into this tank, the car is showing 60.0 mpg and the car is almost always conservative in its fuel consumption estimations.
This gets me into pretty exceptional territory, especially since I would expect a minor loss in fuel economy with E15 88 relative to E10 87.
Could a one point increase in octane rating allow enough of a difference in ignition timing advance to provide a measurable imcrease in fuel economy?
Or, is this just a coincidental fluke with me getting interested in something that isn't real?
Curious what everyone thinks.
Refilled yesterday with 9.9 gallons of E15.
Sixty miles into this tank, the car is showing 60.0 mpg and the car is almost always conservative in its fuel consumption estimations.
This gets me into pretty exceptional territory, especially since I would expect a minor loss in fuel economy with E15 88 relative to E10 87.
Could a one point increase in octane rating allow enough of a difference in ignition timing advance to provide a measurable imcrease in fuel economy?
Or, is this just a coincidental fluke with me getting interested in something that isn't real?
Curious what everyone thinks.