I've always heard that. But why mix gasoline different in winter? There are warm days in winter, cold days in winter, and in-between days in winter. Moreover... modern cars have things like MAF sensors, IAT sensors, and O2 sensors that are supposed to let the car automatically adjust to changes in air density with extreme precision. It makes no sense to me...
2003 Mustang GT 5-Speed, FMS 4.10 gears, Dr. Gas O/R X-pipe, Flowmaster cat-back, BBK CAI, C&L intake plenum, Accufab 75mm TB, Steeda Timing Adjuster -
13.70@102.23
(SOLD) 2000 Cougar V6 ATX with many mods -
15.93@86.97
