View Single Post
Old 11-20-2014, 11:22 AM   #42 (permalink)
rmay635703
home of the odd vehicles
 
rmay635703's Avatar
 
Join Date: Jun 2008
Location: Somewhere in WI
Posts: 3,891

Silver - '10 Chevy Cobalt XFE
Thanks: 506
Thanked 868 Times in 654 Posts
Quote:
Originally Posted by oldtamiyaphile View Post
Nope. Lawn mower engines aren't economical in terms of fuel used to power produced. Then you add up the charging conversion losses, and this sort of system makes no sense. Even BMW's range extender only offers very poor economy on petrol. As an emergency back up it's OK, but it won't do 75MPG without recharging the batteries first at home.
Even with a very poor engine many cars could get 75mpg if tuned to be able to go exactly 25mph max speed.
  Reply With Quote