Top Vehicles MPG (US)
Gasoline cars, last 90 days...
1.2013 Chevrolet Spark 1LT3921.27
2.1992 Honda civic VX87.42
3.2005 Toyota Echo 85.15
4.1992 Honda Civic CX79.41
5.1994 Honda Civic VX VX78.59
6.1998 Geo Metro 73.54
7.1994 Geo Metro 70.91
8.2009 Honda Fit Sport70.1
9.1991 Honda Civic Wagon DX67.93
10.2014 Mitsubishi Mirage DE67.16
More top-10 MPG lists:
hybrids, diesels, trucks, motorcycles & more
 
Highest MPG for a non-hybrid: Mitsubishi Mirage
Best non-hybrid MPG: 2014 Mitsubishi Mirage?
Mitsubishi says its new Mirage subcompact will get the best MPG of any non-hybrid: 44 mpg (US) highway, 37 city. (Some drivers are already beating that in various economy driving contests.) How? An efficient 1.2L, 3-cylinder engine, very light weight and aerodynamic design.
 
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What is Ecomodding?
Welcome to EcoModder.com, an automotive community where performance is judged by fuel economy rather than power and speed. EcoModders employ a combination of vehicle mods, driving techniques, and common sense to squeeze every penny out of the pumps. Reasons for becoming a member range from the economical to the ecological. More info about where EcoModding came from.
 
Top picks from the EcoModder forum and blog

Slow progress but progress (DIY two seater tadpole trike, 9hp Honda diesel) Slow progress but progress (DIY two seater tadpole trike, 9hp Honda diesel)

Old Mechanic is developing an efficient, aerodynamic platform for a tadpole vehicle with the flexibility to run various drivetrains, including (ultimately) his patented hydraulic hybrid drive system. Initial plans are to power it with a single cylinder Honda diesel mated to a Harley 5 speed.

Started by Old Mechanic in forum: EcoModding Central - 351 replies

Manual vs. automatic transmission MPG showdown: Nissan Micra 1.6L

The Micra's official ratings are almost the same for the automatic and manual transmission. Yet the 5-speed can be much more efficient in the real world using just one simple ecodriving technique. Again we see the EPA handicaps manual transmission cars due to dictated, non-eco shift points during testing.

Started by MetroMPG in forum: Hypermiling / EcoDriver's Ed - 43 replies
Manual vs. automatic transmission MPG showdown: Nissan Micra 1.6L

Urba Centurion Update - (Kubota diesel, 100+ MPG in mixed driving - Fall 2012 on) Urba Centurion Update - (Kubota diesel, 100+ MPG in mixed driving - Fall 2012 on)

Changzuki describes the progress of this diesel-powered custom car, with Triumph Spitfire manual transmission and rear differential. Top speed from the 850 cc Kubota is 65 mph, and it's returning 100+ MPG in mixed driving.

Started by changzuki in forum: EcoModding Central - 281 replies

15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed

A collection of mosty small & inexpensive mods, from aerodynamic to electrical to gearing changes (through oversize tires) result in an average 15% mileage improvement in a 2007 Civic.

Started by MetroMPG in forum: EcoModding Central - 26 replies
15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed

Echo-Troll Modding Thread (2005 Toyota Echo) Echo-Troll Modding Thread (2005 Toyota Echo)

Follow the progress of an extensive aeromodding project on a 2005 Toyota Echo 1.5L , 5-speed. EPA : 30 City \ 38 HWY \ 33 Combined MPG (US). Modified MPG: 60 to 75 MPG in a 4.3 mile commute \ 60 to 67 mpg on the highway.

Started by echo-francis in forum: EcoModding Central - 288 replies

Notable eco-cars (old & new) spotted in the wild: post your pics!

Check out interesting and rare eco-cars that people have stumbled across, and share findings of your own!

Started by MetroMPG in forum: General Efficiency Discussion - 638 replies
Notable eco-cars (old & new) spotted in the wild: post your pics!

Aeromodded Civic VX 72mpg (image heavy) Aeromodded Civic VX 72mpg (image heavy)

Ecotex shares with us his father's modified Civic VX that gets very impressive mileage.

Started by ecoTex in forum: EcoModding Central - 299 replies

Paul & Sabrina's cheap DIY 144v motor controller

A thread and project of epic proportions where Paul designs a DIY 144V DC electric motor controller.

Started by MPaulHolmes in forum: Open ReVolt: open source DC motor controller - 6897 replies
Paul & Sabrina

Kill Switch (EOC): Where did you install your activator? And what did you use? Kill Switch (EOC): Where did you install your activator? And what did you use?

Shutting off the engine in a manual transmission car while coasting or when stopped (with any transmission) is an advanced efficiency driving technique that can save a lot of fuel. An ergonomically placed kill switch makes the process easier, safer, and saves wear on the ignition switch. This thread shows multiple installations.

Started by myrefugeisintheLord in forum: DIY / How-to - 149 replies

Buy a trailer (instead of a pickup truck)

This is a thread for anyone thinking about getting a pickup truck as a first or second vehicle when adding a trailer to your car would do instead (and save you lots of fuel & money).

Started by oil pan 4 in forum: General Efficiency Discussion - 426 replies
Buy a trailer (instead of a pickup truck)

You know you You know you're an ecomodder if...

One of the more popular threads on EcoModder, this is a lighthearted and tongue-in-cheek look at the many potential signs and symptoms that you may be more interested in fuel economy than the average person...

Started by Tango Charlie in forum: The Lounge - 1800 replies

How to spend $5k on a $2k econobox = NOT SWIFT (Geo Metro restoration & mods)

StudeChamp does an amazing restoration on a 1991 Geo Metro, and integrates ecomods into the restoration.

Started by StudeChamp in forum: EcoModding Central - 71 replies
How to spend $5k on a $2k econobox = NOT SWIFT (Geo Metro restoration & mods)

5 Basic Aeromods:  A-B-A Test Results 5 Basic Aeromods: A-B-A Test Results

Thorough testing reveals a nearly 8% gain at 60 mph from 5 simple modifications to a 2004 Honda Accord. The changes? Increase tire pressure plus 4 aero mods.

Started by accord_minded in forum: Aerodynamics - 18 replies

Speed vs. MPG charts (post 'em if you got 'em)

The speed at which you choose to drive has the biggest impact on your highway fuel consumption. This fact is nicely demonstrated by this collection of graphs showing the relationship of MPH to MPG in a variety of vehicles, from a 55 hp Geo Metro to a 505 hp Corvette, and many others in between.

Started by bluejoey in forum: Hypermiling / EcoDriver's Ed - 142 replies
Speed vs. MPG charts (post

Heating the transmission with engine coolant Heating the transmission with engine coolant

A good brainstorming discussion about methods for speeding up the warming of the transmission's gear oil.

Started by Daox in forum: EcoModding Central - 105 replies

Aerocivic - how to drop your Cd from 0.31 to 0.17

The first of its kind, the Aerocivic. This car has been pumping out hybrid smashing mileage for years now. VERY impressive build.

Started by basjoos in forum: Aerodynamics - 619 replies
Aerocivic - how to drop your Cd from 0.31 to 0.17

Modding "The Party" (aeromods on 2011 Ford Fiesta S sedan) Modding "The Party" (aeromods on 2011 Ford Fiesta S sedan)

Rare are the owners of new vehicles who are willing to modify them right out of the box. This thread documents the addition of a plethora of aero mods to a brand new Ford Fiesta. Its highway fuel economy is steadily improving - now beating the EPA rating by over 10 MPG (cruising at 62 mph with the A/C on). That's better than a Geo Metro!

Started by RiderofBikes in forum: Aerodynamics - 138 replies

Ren: My '92 Civic

Following on the heels of the aesthetically entertaining, aero-modified Project Anal Probe (1992 Ford Probe), Sven7 is well underway in the transformation of his latest steed into an even more efficient and unique looking machine.

Started by Sven7 in forum: EcoModding Central - 354 replies
Ren: My

Boat tail - Redneck style... Boat tail - Redneck style...

Redneck builds a boat tail for his Geo Metro out of EMT tubing, skinned in 1/2 inch thick foam insulation board. Initial results show a ~15% improvement in real world highway MPG.

Started by redneck in forum: Aerodynamics - 133 replies

208 km (129 mi.) in EV mode with a 2007 prius plugin 20kWh

Planetaire shares his very nice 2nd gen Prius PHEV conversion.

Started by planetaire in forum: Hybrids - 17 replies
208 km (129 mi.) in EV mode with a 2007 prius plugin 20kWh


Save fuel with a ScanGauge II fuel economy computer


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Chevrolet Aveo forum: discussion of the Chevy Aveo and its siblings (Pontiac Wave, Pontiac G3, Suzuki Swift+, Daewoo Kalos).

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