View Single Post
Old 10-17-2011, 02:58 AM   #23 (permalink)
Ladogaboy
Master EcoModder
 
Join Date: Oct 2011
Location: Los Angeles
Posts: 588

Ladogaboy - '11 Mitsubishi Lancer EVO GSR
Team Emperor
90 day: 27.64 mpg (US)

E85 EVO - '11 Mitsubishi Lancer EVO GSR
90 day: 21.38 mpg (US)
Thanks: 59
Thanked 59 Times in 47 Posts
I'm curious why automatics can't do what manuals can in terms of complete fuel shut off. When I am coasting downhill in gear, my mpg becomes infinite because the fuel system stops feeding the engine fuel. Basically, the downhill momentum of the car keeps the engine and all accessories turning without the need for combustion. So in the case of automatics, is it the torque converter that prevents this?
__________________
  Reply With Quote