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MetroMPG · 10-15-2017, 10:54 AM

EPA probably can't answer your specific question, because...

The answer is: It Depends (TM).

If the additional gear choices permit you to choose an intermediate gear that gives you have a lower cruising RPM than you would otherwise, you'll save a bit of fuel.

If the top gear ratios are the same, and you spend most of your time on the highway, there will be no benefit.

EPA's blanket disclaimer is what? "Your mileage may vary."

10-15-2017, 10:54 AM	#37 (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	EPA probably can't answer your specific question, because... The answer is: It Depends (TM). If the additional gear choices permit you to choose an intermediate gear that gives you have a lower cruising RPM than you would otherwise, you'll save a bit of fuel. If the top gear ratios are the same, and you spend most of your time on the highway, there will be no benefit. EPA's blanket disclaimer is what? "Your mileage may vary." __________________ 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