< Previous LessonCourse HomeNext Lesson >

There are a variety of things you can do to make your existing car more fuel efficient.

Beware of scams!

There are a lot of products on the market that claim to save your car gas by just putting on some little part, adding something to your fuel, or something. Some of them work…a little. Even fewer do something useful.

The big rule here is that if it sounds too good to be true, it probably is. Here’s a link to a page from the Federal Trade Commission on these scams.


There are ways to modify your car to achieve real, measurable increases in fuel efficiency, but they’re going to take actual work and usually some money, plus an “I don’t care what people think of me” attitude in many cases. Above is a photo of one of the most extreme ecomodded cars around:the “AeroCivic”.

It is a normal 1992 Honda Civic Hatchback with $400 worth of aerodynamic modifications. Some think it’s cool. Other’s think it’s ugly. But it gets 95 MPG on the highway, so he’ll pass you while you sit at the gas station with your cooler gas guzzler. So laugh it up while you can!

Not every car looks as radical as the one above, though. Often a bunch of very minor modifications that each save a little add up to save big money or add big range.

Ecomodding would take its own course to teach, so I can’t cover it in detail here. What I can do is introduce you to my friends in the ecomodding community and welcome you to the team! We’d be glad to have you in our group of experimenters and hackers.

Anybody can become an ecomodder if they’re willing to learn. You’re nearing the end of this course, so clearly you’re good at this 🙂

Here are some links to get you started:

Ecomodder Wiki Efficiency Mods Page

Ecomodder Forums

Hypermiling America Facebook Group

< Previous LessonCourse HomeNext Lesson >