I'm exploring this now. It seems that, without any change in driving
habits, my van's mileage is poorer in winter than in summer. I'm talking
northern hemisphere here, and by "winter" I mean "cold" and summer,
well, not cold.

I'll be checking this for the next couple months, comparing 10% ethanol
gas v. straight gas.

In the meantime, has anyone else noticed this? Is it common, with a
simple explanation?

--
Jack "Rocket j Squirrel" Elliott
1984 Westfalia, auto trans,
Bend, Ore.