[ever_green]

as i said its just a thought, im not seriously considering a new car for now.

anyway, i feel a bit better after today. i think i have finally found the sweetspot for my vehicle. Going to work today via the expressway i averaged 8.1l/100km or 29mpg. i was driving at 65mph and during acceleration runs i was using only %60-70 engine load at minimum possible rpm (2700). but then i remembered that's how much my v6 acura gets on the highway :\

So on the way back home with a lot more traffic i decided to drive more aggressively following the official Subaru bsfc chart which indicated a sweetspot of %85+ load at 1500-4000rpm. The problem with my impreza is its churning 2700rpm at 68mph. That's a good thing because i don't have to ever downshift, but it's also bad because of the excess friction during highway cruising. So there is no way that i can accelerate below 2500rpm at +60mph speeds. With 3000rpm RPM and %85-95 load in mind for acceleration runs, i drove home with no special hypermiling technique. I did this as fast as the traffic would allow (+68mph with some slowdowns to full stops). Upon arrival i checked my commute average and it was 7.1lhk or 33mpg. That's a good bit of improvement considering how much easier the drive home was not considering the traffic. There was a WOT run in there too. Funny enough this kind of acceleration technique doesn't work at all in the city, i'm still trying to figure out the sweetspot around town. maybe ill keep this car...

now my only concern is wether the scangauge and my car's on board trip computer were reporting correct numbers. Sometimes they are both off at the pump.