Originally Posted by Jsolo

You'll also see better mpg come warmer weather. This winter blend is the sh!ts for for economy.

Interesting to note; My motorcycle gets upward of 38-40 mpg during the summer (ridden aggressively). Yet once it starts getting cooler/colder (40's/50's), my mpg can drop to low 30's and even upper 20's (not ridden so aggressively). Depending on how the vehicle is tuned, some engines are more/less efficient during warmer ambient temps.

ymmv (literally).