Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Any testing on mpg effects of using various gear oils?

MetroMPG · 02-11-2010, 06:40 PM

Two references to improved fuel economy with synth gear oils below.

The fact that they appear on major manufacturer web sites (which employ lawyers to ensure they avoid or can defend legal challenges of their claims) says something, in my opinion:

Mobil Delvac Synthetic Gear Oil 75W-90, 80W-140

Castrol USA - Gear Oil

02-11-2010, 06:40 PM	#12 (permalink)
MetroMPG Batman Junior Join Date: Nov 2007 Location: 1000 Islands, Ontario, Canada Posts: 22,534 Blackfly - '98 Geo Metro Team Metro Last 3: 70.09 mpg (US) MPGiata - '90 Mazda Miata 90 day: 54.46 mpg (US) Appliance car Mirage - '14 Mitsubishi Mirage ES (base) 90 day: 57.73 mpg (US) Thanks: 4,082 Thanked 6,979 Times in 3,614 Posts	Two references to improved fuel economy with synth gear oils below. The fact that they appear on major manufacturer web sites (which employ lawyers to ensure they avoid or can defend legal challenges of their claims) says something, in my opinion: Mobil Delvac Synthetic Gear Oil 75W-90, 80W-140 Castrol USA - Gear Oil __________________ Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata Honda mods: Ecomodding my $800 Honda Fit 5-speed beater Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage. Ecodriving test: Manual vs. automatic transmission MPG showdown EcoModder has launched a forum for the efficient new Mitsubishi Mirage www.MetroMPG.com - fuel efficiency info for Geo Metro owners www.ForkenSwift.com - electric car conversion on a beer budget