Top Vehicles MPG (US)
Gasoline cars, last 90 days...
1.1992 Honda civic VX83.73
2.2005 Toyota Echo 66.75
3.1995 Honda Civic VX63.84
4.2014 Mitsubishi Mirage DE62.45
5.1992 Honda Civic CX61.96
6.1994 Geo Metro 59.92
7.1998 Honda Civic DX Coupe59.76
8.2012 Toyota Prius Plug-in 58.28
9.2009 Honda Fit Sport58.26
10.2012 Toyota Aygo T2 Air58.02
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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> 89 civic wagovan 5spd (very slow build: power + ecomods & lots of pics!)
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> 89 civic wagovan 5spd (very slow build: power + ecomods & lots of pics!)
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> 89 civic wagovan 5spd (very slow build: power + ecomods & lots of pics!)
In EcoModding Central
> Project "Save the Flea!" Winter beater: 2007 Civic 1.8L, 5-speed
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> Vacuum gauge AND ScanGauge
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> Vacuum gauge AND ScanGauge
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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

89 civic wagovan 5spd (very slow build: power + ecomods & lots of pics!) 89 civic wagovan 5spd (very slow build: power + ecomods & lots of pics!)

Meet "Skiddy", a 1989 Honda Civic Wagon being transformed into a "dual purpose" sleeper: 300 horses PLUS a pile of efficiency mods. The goal is 35 MPG (US) combined (compared to the original EPA rating of 28 MPG combined).

Started by vrmouseyd15b in forum: EcoModding Central - 240 replies

OG's VX Build: HyperMile Driving with some JDM Styling

Member OG VX documents the ongoing restoration/ecomodding of his 1992 Honda Civic VX with tons of details and photos. Already averaging 54 mpg (US).

Started by OG VX in forum: EcoModding Central - 291 replies
OG

Buy a trailer (instead of a pickup truck) 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 - 469 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 - 729 replies
Notable eco-cars (old & new) spotted in the wild: post your pics!

Efficient, cheap beaters! Used car ads: 35 mpg highway or more for $1500 or less Efficient, cheap beaters! Used car ads: 35 mpg highway or more for $1500 or less

People often sign up on the forum seeking advice on cheap, economical beaters. The purpose of this thread is to go beyond the hypothetical, and post actual ads of actual available cars. They're out there, people. (Our non-North American members should feel free to laugh at our concept of 'efficient' little cars.)

Started by MetroMPG in forum: For Sale - 205 replies

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 - 1872 replies
You know you

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 - 341 replies

Automotive Aerodynamics (video series)

Forum member and aero researcher graysgarage is producing info-rich, YouTube videos on a variety of automotive aerodynamic topics. They include clear explanations, plus lots of flow test footage and analysis. And he's taking suggestions for future episodes.

Started by graysgarage in forum: Aerodynamics - 24 replies
Automotive Aerodynamics (video series)

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 - 351 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 - 7006 replies
Paul & Sabrina

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 - 120 replies

DIY open source lithium BMS (battery management system)

This thread details the development and testing of a lithium battery management system (BMS). The system is being built for a Toyota Prius plug-in conversion kit, but it could be used in many other applications.

Started by Daox in forum: Fossil Fuel Free - 42 replies
DIY open source lithium BMS (battery management system)

Boat tail project based on a single wheel trailer... Boat tail project based on a single wheel trailer...

BamZipPow's epic customization & refinement of a single-wheel, drag-reducing trailer used on his already extensively aero-modified 1998 Toyota T-100 pickup. "Mileage is averaging around 27mpg with the trailer," he says, which he estimates is about a 2 MPG improvement.

Started by BamZipPow in forum: Aerodynamics - 438 replies

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 - 149 replies
Boat tail - Redneck style...

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 - 358 replies

4 does-for-more-bros (97 civic dx sedan: HX + auto to manual swap)

Jakins wanted more doors and A/C, so he picked up a cheap 4-door Civic DX automatic and is converting it over to HX mechanicals and manual transmission, plus aero mods. His goal: 55-60 mpg US.

Started by Jakins in forum: EcoModding Central - 62 replies
4 does-for-more-bros (97 civic dx sedan: HX + auto to manual swap)

How to properly test modifications (AKA: don How to properly test modifications (AKA: don't believe every MPG claim you read)

Here on EcoModder we see a lot of claims made about the effectiveness (or lack of effectiveness) of specific modifications. It's an understatement to say not all claims are made equal. It all depends on how rigorous the test is.

Started by MetroMPG in forum: EcoModding Central - 101 replies

Another truck aero cap idea...

Follow the evolution of BamZipPow's aerodynamic cap for his 1998 Toyota T-100 pickup.

Started by BamZipPow in forum: Aerodynamics - 352 replies
Another truck aero cap idea...

Replace your car battery with capacitors! Replace your car battery with capacitors!

A good discussion on replacing a starting battery with ultra capacitors in cars, trucks, and motorcycles.

Started by redneck in forum: EcoModding Central - 179 replies

Experiment: smooth wheel discs tested A-B-A - 4.6% mpg improvement @ 65 mph

Forum member Concrete tested smooth wheel covers on his 2000 Chevrolet S10 pick-up, and posted the data compared to the stock alloy wheels. A-B-A testing found +1.3 mpg -- that's about 4-5% depending on how you want to figure it.

Started by Concrete in forum: Aerodynamics - 318 replies
Experiment: smooth wheel discs tested A-B-A - 4.6% mpg improvement @ 65 mph


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