Lakedude,
Do you know the source of that chart?
Those CIVIC AC on numbers (35.5 MPG?) just look awfully low. Some folks here are claiming they see little difference in MPG - AC on OR off.

Steve

STOP terrorism - Drive a HYBRID

Vehicles:
350 miles a week ------------ 2006 HCH II, Magnetic Pearl, w/NAVI (born on May 25, 2006)
350 miles a month ---------- 2003 Mazda Tribute ES-V6
350 miles a year (for now) - 1986 Mercedes 560SL