Junkyard Find: 2003 Honda Civic GX, CNG-fueled

Murilee Martin
by Murilee Martin
The compressed natural gas-burning Honda Civic GX first appeared in the United States in 1998, for sale to fleet buyers, but individuals in California were able to buy Civic GXs soon after that. In spite of its extremely clean tailpipe emissions, few Californians opted to endure the hassle of trying to refuel the GX, and so these cars are very rare sights in the Golden State.Here’s a crashed example I spotted a few weeks ago in a San Francisco Bay Area self-service wrecking yard.
The GX cost more and had less power than an ordinary gasoline-burning Civic, so there were two big reasons for Californians to buy one: to pollute less, and (probably more important to most) to be allowed to drive solo in the carpool lane (a huge inducement in a state that has the worst freeway congestion in the country).These days, you’ll see these decals all over the Bay Area, mostly on hybrid-electric and full-electric vehicles, but in 2003 there weren’t many Toyota Priuses and Honda Insights on the road and daily-driven EVs were nearly unheard of.
The D17A7 engine in the GX ran at higher compression than its gasoline-fed counterparts, thanks to the anti-detonation properties of CNG. In 2003, it generated 100 horsepower and drove the front wheels via a CVT. Not exciting to drive, but clean.
CNG is pretty cheap if you can find a filling station, so the per-mile cost to drive this car was a little bit cheaper than a gasoline Civic. CNG-powered vehicle drivers can install a home-refueling station that compresses household natural gas and puts it in the car’s tanks, so maybe that’s how the owner of this car rolled before the crash.
Murilee Martin
Murilee Martin

Murilee Martin is the pen name of Phil Greden, a writer who has lived in Minnesota, California, Georgia and (now) Colorado. He has toiled at copywriting, technical writing, junkmail writing, fiction writing and now automotive writing. He has owned many terrible vehicles and some good ones. He spends a great deal of time in self-service junkyards. These days, he writes for publications including Autoweek, Autoblog, Hagerty, The Truth About Cars and Capital One.

More by Murilee Martin

Comments
Join the conversation
2 of 14 comments
  • Kefkafloyd Kefkafloyd on Aug 22, 2017

    CNG makes a lot of sense for a variety of things but it does have downsides versus regular petroleum cars. For trucks and buses, though, it's a complete win. The hybrid CNG-electric buses have cut emissions considerably in the state of Massachusetts and they're cheaper to run to boot.

  • Dukeisduke Dukeisduke on Aug 22, 2017

    That's gotta be the most optimistic speedometer I've ever seen. 150mph?

  • CoastieLenn I would do dirrrrrrty things for a pristine 95-96 Thunderbird SC.
  • Whynotaztec Like any other lease offer it makes sense to compare it to a purchase and see where you end up. The math isn’t all that hard and sometimes a lease can make sense, sometimes it can’t. the tough part with EVs now is where is the residual or trade in value going to be in 3 years?
  • Rick T. "If your driving conditions include near-freezing temps for a few months of the year, seek out a set of all-seasons. But if sunshine is frequent and the spectre of 60F weather strikes fear into the hearts of your neighbourhood, all-seasons could be a great choice." So all-seasons it is, apparently!
  • 1995 SC Should anyone here get a wild hair and buy this I have the 500 dollar tool you need to bleed the rear brakes if you have to crack open the ABS. Given the state you will. I love these cars (obviously) but trust me, as an owner you will be miles ahead to shell out for one that was maintained. But properly sorted these things will devour highway miles and that 4.6 will run forever and should be way less of a diva than my blown 3.8 equipped one. (and forget the NA 3.8...140HP was no match for this car).As an aside, if you drive this you will instantly realize how ergonomically bad modern cars are.These wheels look like the 17's you could get on a Fox Body Cobra R. I've always had it in the back of my mind to get a set in the right bolt pattern so I could upgrade the brakes but I just don't want to mess up the ride. If that was too much to read, from someone intamately familiar with MN-12's, skip this one. The ground effects alone make it worth a pass. They are not esecially easy to work on either.
  • Macca This one definitely brings back memories - my dad was a Ford-guy through the '80s and into the '90s, and my family had two MN12 vehicles, a '93 Thunderbird LX (maroon over gray) purchased for my mom around 1995 and an '89 Cougar LS (white over red velour, digital dash) for my brother's second car acquired a year or so later. The Essex V6's 140 hp was wholly inadequate for the ~3,600 lb car, but the look of the T-Bird seemed fairly exotic at the time in a small Midwest town. This was of course pre-modern internet days and we had no idea of the Essex head gasket woes held in store for both cars.The first to grenade was my bro's Cougar, circa 1997. My dad found a crate 3.8L and a local mechanic replaced it - though the new engine never felt quite right (rough idle). I remember expecting something miraculous from the new engine and then realizing that it was substandard even when new. Shortly thereafter my dad replaced the Thunderbird for my mom and took the Cougar for a new highway commute, giving my brother the Thunderbird. Not long after, the T-Bird's 3.8L V6 also suffered from head gasket failure which spelled its demise again under my brother's ownership. The stately Cougar was sold to a family member and it suffered the same head gasket fate with about 60,000 miles on the new engine.Combine this with multiple first-gen Taurus transmission issues and a lemon '86 Aerostar and my dad's brand loyalty came to an end in the late '90s with his purchase of a fourth-gen Maxima. I saw a mid-90s Thunderbird the other day for the first time in ages and it's still a fairly handsome design. Shame the mechanicals were such a letdown.
Next