[brucepick]

I think that CT must have changed over to summer mix fuel on Apr. 15.

My mpg has been hovering just under 27 mpg since early March. This afternoon I tanked up and it came out at a hair under 30 mpg. Yes the afternoons have been warmer but a solid 10 % increase nearly overnight? I think the fuel changeover has occurred, at least in this state. Likely much of the Northeast is on the same schedule.

If you're watching for this in your mpg results - remember that you need to fill with the new stuff first, then you could notice results at the next fillup after that.