Quote:
Originally Posted by MetroMPG
Don't forget that when you're talking about a 16 MPG vehicle, 1 MPG is a significant difference in volume/cost of fuel used. See post #5.
I see this repeated often, and I'm skeptical. Sounds like a truck drivers urban myth /slash rationalization.
- The EPA test cycles run the engines at the same rates of acceleration and same speeds (ie. "perform the same"), and the smaller displacement engines win out over the bigger ones.
- For "real world" results (if you assume the sample size is big enough and representative), check the "Your MPG" numbers on the www.fueleconomy.gov site and I bet you'll find that smaller displacement engines also get better MPG as reported by real drivers
Pre-emptive point: anecdotal stories (lacking solid methodology) don't count! |
Yep, I just generalized they are a tie for purpose of saying he won't save much with the v6. But I checked fueleconomy.gov after your post, it does list 1mpg EPA rated difference for the auto 4.8l v8 vs auto 6, but same avg mpg for manual 6 vs manual 4.8l 8. Under $180 savings/yr if he went with the auto 6cyl. Thats less than 10% saved going with the auto 6, nothing saved for the manual 6. I still say its a wash, a gas truck is just plain bad mpg