View Single Post
Old 02-07-2011, 12:44 PM   #9 (permalink)
abell75
EcoModding Lurker
 
Join Date: Nov 2010
Location: St. Louis
Posts: 38

Grand Prix - '02 Pontiac Grand Prix GP
90 day: 24.01 mpg (US)
Thanks: 3
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by instarx View Post
But hven't you slipped into what you said you did NOT want to do - chose efficiency over absolute fuel use? If you get 25 mpg on the short hilly route you would have to get 44 mpg on the 75% longer flat route to break even. I really doubt the difference in mpg between the two routes is going to be anywhere near that large.
You may be right, and that's exactly what I'm trying to determine. My overall FE is only 24. I'm guessing that on that hilly route home, where I brake on every downslope, coming to a complete stop at the bottom of the largest hill, my FE is 12-15. In that case, 25-30 on the longer route would be a winner; since it's a gentle drop in elevation along that route; I think it's plausible.

I may just have to spend some coin on the SGII. I do have some Christmas money left....
  Reply With Quote