Originally Posted by
80057
6 months now and im 9.2 per 100km, thats m4 everyday from penrith to homebush, so good some days terrible others, alot of short trips on weekends adds to the consumption levels.
as aaron said making your engine work harder in a higher gear uses more petrol then lower gear, also i have found doing 130-140 uses less fuel then 110km i think becoause 110 is inbetween gears and not in the happy medium of enough power to sustain the speed. at gear 5's rev level. lowest i've gotten is about 7 after filling up on the motorway and cruising home.
the biggest surpirse is a quick spirt (not floor) then easing to a cruise consumes less then a slow longer continual acceleration. therea a fine line in there i tho