SV Cleveland,
I've been trying to go as long as possible between fill ups to get as good an mpg estimate as possible. Four small fill ups over 342 miles could mean sizeable errors in the mpg calculation. For a short 85 miles, one click on the fill/refill can come out to more than a few mpg's.

Good to hear BadGL's GL is doing better. From the 26,21,21, it sounds like the car was running in a safe-mode. Then eventually the yellow engine light would come on, or so I've heard. During the 21,21 days, was the car driving differently, like engine or transmission smoothness?

Still getting about 30 mpg! My old car's (non hybrid) mpg dropped 10-20% in the winter. Wonder how the SGL will do.

So long.