View Single Post
Old 06-04-2018, 07:42 AM   #36 (permalink)
Ecky
Master EcoModder
 
Ecky's Avatar
 
Join Date: Dec 2011
Location: New Zealand
Posts: 5,018

ND Miata - '15 Mazda MX-5 Special Package
90 day: 40.51 mpg (US)
Thanks: 2,870
Thanked 2,515 Times in 1,555 Posts
Depends on the generation of LT1, but more recent ones with cylinder deactivation probably get very close to diesel fuel economy, with the major difference being the energy difference in the fuel (and price per gallon).

EDIT: I'm willing to bet running the engine on the lean side under low-load cruise conditions would be a better use of time and energy. Let the gasser act like a diesel under some conditions by varying AFR.
  Reply With Quote