Competition HP loss to Winter fuel mix ratio.

[JasonCzerak]

Has anyone calculated the amount of HP loss we get in the northern areas when the winter blend is in effect? I lose 3mpg or so easily. Has anyone dynoed on the same dyno in Feb. vs July and have numbers?



Could a gallon or so of PS in the grey bring that HP number back up?

 

[JR2]

I see the MPG loss to and I also don't see as much smoke come out of the truck. Part of that is due to cold air going it, but some is due to the poor fuel. I would bet the dyno would show a good drop in HP.