Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Alternator disable switch -- how much MPG improvement?

sl2eggplant · 06-08-2010, 11:31 AM

I know a few of you guys have installed a alternator disable switch. Just trying to get an idea of how much that will improve MPG (actual number or %). A "guesstimate" is fine since I'm still months away from completing all my mods.

My daily round trip commute with my 99 Saturn SL2 automatic is 64 miles (56 highway, 8 city) with some construction and traffic.

06-08-2010, 11:31 AM	#1 (permalink)
sl2eggplant Aspiring EcoModder Join Date: May 2010 Location: Detroit Posts: 59 Eggy - '99 Saturn SL2 90 day: 43.7 mpg (US) Thanks: 0 Thanked 1 Time in 1 Post	Alternator disable switch -- how much MPG improvement? I know a few of you guys have installed a alternator disable switch. Just trying to get an idea of how much that will improve MPG (actual number or %). A "guesstimate" is fine since I'm still months away from completing all my mods. My daily round trip commute with my 99 Saturn SL2 automatic is 64 miles (56 highway, 8 city) with some construction and traffic.