View Single Post
Old 01-15-2013, 11:19 AM   #16 (permalink)
christofoo
Master EcoModder
 
christofoo's Avatar
 
Join Date: Mar 2012
Location: Salt Lake City
Posts: 292

00C - '00 Toyota Corolla
90 day: 43.54 mpg (US)
Thanks: 147
Thanked 190 Times in 73 Posts
Quote:
Originally Posted by TheIVJackal View Post
If they are 10-20% less energy, what does that look like MPG wise?
- Aaron
The eco purpose of reducing power draw, IMHO, is to extend battery cycling life with repeated engine-off use, and/or reduce the likelihood of accidentally draining it beyond restartability. EDIT: or get ready for an alternator delete.

Actually in my case the Civic is having 'smart' alternator issues and I was hoping to forestall a real repair. So far that hasn't been working out for me.

Assuming 37kWhr/gal for gasoline: (EDITED)
'Eco' bulbs: reduction of 20W/15%(efficiency)/37,000Whr/gal = 0.015 gal/hr
HID (hypothetically): reduction of 0.03 gal/hr

Last edited by christofoo; 01-15-2013 at 01:42 PM..
  Reply With Quote