Bill, this is called mechanical rebellion. Seems those machines don't like you so much right now. Happens to all of us.
It is kind of like human rebellion. You know. Remember coming home late to a cold plate of ribs and cabbage and the missus already gone to bed and fast asleep? Well, all us guys experience that now and again. The cure for that is chocolates, flowers and/or diamonds. Depending on the severity of the "crime", of course.
Well, the cure for the machinery rebellion is straight, no ethanol, gasoline and an apology. Well, could be. Throw in a tune up, to boot.
I bet Tiny apologized to "Sweetie" and then fills her up with straight regular all the time. Right Tiny?
Charlie