My Pontiac Firefly / Chevrolet Metro / Geo Metro / Suzuki Swift welcomes fuel efficiency nerds everywhere

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Latest fuel economy stats
for my '98 Firefly 1.0L 5-speed
  best: 2.3 125.1 104.2
 worst: 6.4  44.1  36.8
prev.3: 3.3  82.3  68.6
   all: 3.8  73.4  61.1
L/100km | mpg IMP | mpg US
Jul 28/07: more, graph, calc.
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Best non-hybrid MPG: Mitsubishi Mirage
Highest MPG for a new car: Mitsubishi Mirage?
Mitsubishi's 1.2L, 3-cylinder Mirage is the first new non-hybrid car that can match an old Metro's mileage. The company says 44 mpg (US) highway, 37 city. (Some drivers are already beating that in various economy driving contests.) How? An efficient engine, very light weight and aerodynamic design.

Cheapest to own? 2015 Nissan Micra Forum
2015 Nissan Micra Forum
The Micra's fuel economy isn't its most notable feature -- the $10,000 price is. That makes it one of the cheapest cars to own. And its 109hp, 1.6L engine and good power-to-weight ratio means it's fun to drive too.

Latest 10 posts:
1. Recipe for getting 99.7 mpg from a Geo Metro
2. - famous aerodynamic Honda Civic gets a web site
3. Snapshot: effect of tire pressure on rolling resistance
4. 65+ vehicle modifications for better MPG
5. Metro mania: forget stocks, put your money in old Geos!
6. 100+ Hypermiling / ecodriving tips for better gas mileage
7. Experiment: how long should a block heater be plugged in?
8. Everything old is new again: Car and Driver magazine modifies an econobox to improve MPG
9. Project Convertible XFi: alfresco efficiency
10. The floor is yours: MetroMPG opens a fuel efficiency forum
11 ... 64. Show all posts

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Good MPG forums: I spend a lot of time at and have also been known to lurk around

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

> Lots more Metro links...
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Send me a note:
darin AT metrompg D-O-T com,
or here

MetroMPG has opened a fuel economy forum
Read about the project here, or go straight to
ScanGauge fuel economy computer Save fuel with a ScanGauge II fuel economy computer.
I personally recommend this tool. I've owned both versions (I and II) and can't say enough good things about it. If you're serious about saving fuel, get one.

For more information and to order, visit EcoModder.

Visitor comments

Posted Saturday, February 18/06 in General

MetroMPG's got mail

To keep maintenance to a minimum, I opted not to set up a guestbook or web feedback feature when I launched (and also to avoid "comment spam"). But that doesn't mean I don't get letters.

It's always great to hear from visitors. It's nice to know I'm not the only mileage nut with a penchant for the Suzukiclones! Drop me a line any time - I always try to write back (enter your e-mail address carefully if you use the web form).

Here are some of the comments that have been e-mailed or submitted through the site's contact page.

- - -

  • I stumbled on your site and I had to smile; I am a fuel economy nerd with an advantage - I have been an automotive tech for years. I also spend way too much time thinking (in the car anyway) of ways to improve my driving. I drive an '88 tercel and I get 48 mpg combined. There are other tricks I haven't seen mentioned here that are inexpensive or free, if you're interested, I'd be glad to share!

          - J.J.

  • Your site is awesome. Yesterday I ordered the Scanguage on your recommendation. This fuel economy geek can't wait to get it. Thanks.

          - John D.

  • I love the site, and was very shocked to find it when looking for mileage upgrades. Thanks.

          - Chris

  • Hey, I have a couple of friends who have had Firefly's in the past, and they seem like really efficient cars, which is awesome. I am now looking for a Firefly/Metro/Swift...I wouldn't suppose you would be interested in selling one of the cars (especially the black one?)

          - Marc

  • Thanks for the website, it's nice to know I am not the only whacko interested in max MPG in my '96 Metro! I've been looking for a source for a block heater, that's how I found your site through Google. Can you tell me where I can get one? You wrote that it was not too easy too install, but I just replaced the front crank seal, water pump, all the belts (including timing) and all of the normal tuneup stuff, and it was one of the easier cars I have ever worked on.

          - Scott N.

  • I was also wondering if lowering springs, and sway bars might help as well. I liked your comments on covering grill intakes.I have some extra plastic in garage I was going to cover them with.As well as covering the headlights.They look like they can grab a lot of air and hold the car back. Just sold my 92 Vert,now its time to turn my attention to my 54,000 mile XFI.I saved its life,the next day it was going to be crushed.

          - Steve E.

  • I'm in awe of your mpg's & really appreciate your "metrompg" site. I'm not very computer/internet savy, so when I stumbled on to "teamswift", then a link to your site, I was in hog heaven!

          - G.K.

  • I've been reading, with interest, your dealings with your Pontiac Blackfly. I drive a 96 GEO Metro. If you persue lowering your car's riding height, I'd really like to see your results and exactly how you go about it. I've often wanted to drop my 96 Geo down a notch or two. Please keep in touch.

          - T.B.

  • Hello there...GREAT SITE!!! Just stumbled across it. Wondering if you could help me, I currently have a 1993 Geo Metro XFI and am thinking of rebuilding the engine. My problem is that I am having problems finding any parts/info on this engine. All the rebuild kits I see, the piston has two compression rings instead of just the one in the XFI. Could you direct me to anyone who has knowledge/contacts in regards to this? Thanks for your time & your site!

          - Al K.

  • I just stumbled upon your site today. Great content! It appears that we have a similar interest/compulsion. I am the owner of the 109 MPG Prius and was one of the drivers in the marathon. You did a great job explaining P&G and also did a great job explaining the pros and cons. My latest acquisition is a 93 del Sol S, 5 speed. My first two tanks have been in the low 50's (US MPG) but I hope to approach 60 in the summer.

          - Dan

  • Love your site, very objective. I've got a '95 3cyl. and the exhaust is about due.(from cat to muffler) Any suggestions?

          - Sean

  • Wanted to thank you again for your informative site. Just sold my 93 Metro XFI (basically parts car status) and Drove from PA to VA last weekend and purchased my new on e! :) 1994 Geo Metro XFI with only 34k miles on it. Wonder if it is one of the lowest mileage ones left? Thanks again and keep up the good work!

          - Al K.

  • Great site! I drive an Insight and just came across a link for this site. Lots of good info for everyone.

          - Don C.

  • Good to see a website such as your go up. With high fuel costs, I am starting to become more interested in this topic.

          - Minh D.

EcoModder fuel economy forum Note: MetroMPG has opened a fuel economy forum
Read about the project here, or go straight to

darin AT metrompg D-O-T com, or here