Top Vehicles MPG (US)
Gasoline cars, last 90 days...
1.1992 Honda civic VX84.52
2.2005 Toyota Echo 81.6
3.1991 Honda Civic Wagon DX73.6
4.2009 Honda Fit Sport70.72
5.1994 Geo Metro 70.05
6.1998 Geo Metro 69.06
7.1992 Honda Civic CX68.61
8.1992 Honda Civic VX67.49
9.1997 Geo Metro 67.12
10.1992 Honda Civic Vx67.09
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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

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 - 1790 replies

Have you ever given 1-on-1 ecodriving instruction? (Here's how I did it.)

MetroMPG walks us through his recent experience of teaching individual "non-hypermilers" about ecodriving. With just an hour-long session, each driver's results showed an immediate increase in fuel economy above their car's EPA ratings.

Started by MetroMPG in forum: Hypermiling / EcoDriver's Ed - 98 replies
Have you ever given 1-on-1 ecodriving instruction? (Here

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 - 32 replies

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

Full boat tail on a Matrix Full boat tail on a Matrix

A gain of ~5 MPG is documented from the construction of this hatch-mounted boat tail on a 2006 Toyota Matrix. The goal of the builder was to preserve access to the hatch and rear vision.

Started by Weather Spotter in forum: Aerodynamics - 337 replies

Streamlined Citroen ZX

CitroX describes his project: "This was actually the experimental part of my master thesis. I needed to analyse how drag effects a moving vehicle and how it's aerodynamics could be improved. Orginal car ABA testing did 31.36 mpg @ 56mph. Modified car same road same speed but warmer weather did 49 mpg. This mpg increase is very close to the one that was theoretically estimated."

Started by CitroX in forum: Introductions - 47 replies
Streamlined Citroen ZX

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 - 399 replies

3rd gen Prius aeromod thread

Vman455 buys a 3rd gen Prius, and in typical ecomodder fashion doesn't take long to start modding it. Check out what he has done.

Started by Vman455 in forum: Aerodynamics - 78 replies
3rd gen Prius aeromod thread

Ren: My 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 - 351 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 - 599 replies
Notable eco-cars (old & new) spotted in the wild: post your pics!

Paul & Sabrina 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 - 6876 replies

Spotted: fully streamlined/aeromodded ~2005 Honda Civic sedan (Austin, TX)

Spotted in the wild in Austin, Texas: a 2005-ish Civic Sedan with the full DIY aero treatment, from custom front bumper, to wheel covers, skirting, Kammback treatment and more. Anybody know whose it is?

Started by MetroMPG in forum: Aerodynamics - 45 replies
Spotted: fully streamlined/aeromodded ~2005 Honda Civic sedan (Austin, TX)

Freezing the Slushbox. Torque Converter on-demand lockup switch. Freezing the Slushbox. Torque Converter on-demand lockup switch.

Forum member orange4boy documents how he took manual control over the automatic transmission in his Toyota Previa van to force the torque converter to lock at will in any gear. (Note: requires an attentive driver to prevent potential damage). This modification gave him the largest increase in fuel economy of all his mods to date.

Started by orange4boy in forum: EcoModding Central - 266 replies

Old square sedan kammback

Joris documents the construction and testing of a nicely made aluminum-skinned Kammback on his (very squared off) notchback Euro Volvo sedan. The addition is cleverly attached at the drip rails and hinged to preserve access to the factory trunk/boot.

Started by Joris in forum: Aerodynamics - 55 replies
Old square sedan kammback

Full-boat-tail trailer with gap-fillers for Toyota T-100 pickup Full-boat-tail trailer with gap-fillers for Toyota T-100 pickup

Phil says: "The boat hull is far from ideal but using it will save hundreds of man-hours. Maybe 40 mpg HWY... we'll see. P.S. the trailer is large enough to serve as a rigid tent, for car-camping."

Started by aerohead in forum: Aerodynamics - 353 replies

Grill block on a Silverado


Started by darcane in forum: Aerodynamics - 83 replies
Grill block on a Silverado

Another Civic VX Kammback with deep roots Another Civic VX Kammback with deep roots

mloveland78 documents an extensive rebuild of his Civic VX, as well as additional modifications that lead him to regularly getting better than 70 mpg (US) / 3.4 L/100 km on his usual commute in warm weather.

Started by mloveland78 in forum: Aerodynamics - 41 replies

Commercially produced aerodynamic pickup bed cap

Brett Herndon is a genuine craftsman who has combined his skill in clay modeling with his knowledge of aerodynamics to produce a professional quality aerodynamic truck cap which will literally pay for itself in gas savings. It's unlike anything you've seen before: it can be used as a big hatchback, transformed into a conventional box cap, or have its top removed to make room for oversize loads. Brett is taking his handiwork into commercial production, and is a success story waiting to happen.

Started by MetroMPG in forum: Aerodynamics - 498 replies
Commercially produced aerodynamic pickup bed cap

My Ford Ranger - Project Log My Ford Ranger - Project Log

Nathan01xl is currently averaging around 38 MPG (US) in his 2001 Ford Ranger following numerous changes including the addition of a digital MPG gauge, improved driving technique, and a growing list of efficiency modifications.

Started by nathan01xl in forum: EcoModding Central - 142 replies

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 - 219 replies
Aeromodded Civic VX 72mpg (image heavy)


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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