summer vs winter mpg

[user removed]

WATT HOURS PER MILE

April 2015
888,896,891,903,840.

March 2015
954,907,960.

Feb 2015
1007,979.

Jan 2015
984,981.

Dec 2014
943,949,984,923.

Nov 2014
1008 (highest),894,845,881,916.

Oct 2014
913,934,976,842,851.

Sept 2014
812,860,830,899,924,864,877.

Aug 2014
869,942,851

highest mileage per tank was 41.51mpg
lowest mileage per tank was 33.4 mpg

regards
mech

[fbov]

FWIW, I don't find a seasonal variation, it's strictly a temperature-based. Data from last summer and this past winter, with Micelin Energy Savers in summer, X-Ice 3 in winter.


I'm seeing about 3 MPG per 10F temperature effect at an average mileage of about 45MPG, so it's about 7% per 10F. Surprisingly linear, too!

Have fun,
Frank