Is it easy? Is it like filling a barbecue LPG bottle? Can it be "do it yourself" or do stations need to have attendants?
Related questions: What is the energy equivalent of CNG vs gasoline? If I convert my car, what percentage of gasoline power will I have on CNG?
What is the relative size of fuel storage tanks on vehicles compared to gasoline or diesel tanks? Can they fit in the same space, or do you have to do surgery to the vehicle? Will I have similar fuel range as with gasoline? Since CNG is under pressure, do the tanks have to be cylinders?
What time period does it take to pay back the cost of CNG engine vs gasoline version? (Up front cost, plus cost of fuel)
I need to know what's its like to live with one of these vehicles-
I don't own an NG vehicle, but am considering buying a used one from a reseller like:
I have driven into a refueling station in Arden, NC and it is totally self-service. There's not even an attendant! Put in your card at the pump and fill it up.
At this site:
There's a pic of the station, but also a link to all the NG stations nationwide.
As to power per gallon equivalent, here's a link that gives you actual MPG, and power, for 1 vehicle, but it generalizes to about 85-90% of what you get on gasoline (poorer mileage, slower acceleration by a reduction of 10-15%).
Best of luck.
For your other q's, it really depends on your vechile and driving patterns.
I would suggest you research more at
And for specific how to questions, see the numerous message boards on automotive repair sites.
Sure, millions have, Drivers in India, Iran, Pakistan and Italy. Not to mention many in the US including your local bus fleet and garbage hauler.
(As an aside, news out of LA is that they just retired their last diesel bus. See: http://www.treehugger.com/files/2011/01/los-angeles-metro-retires-last-diesel-bus-now-compressed-natural-gas-cng.php)
But seriously, yes. We did try it out, prior to making our first investment in $FSYS.
It's easy and you can do it yourself. It works well for bifuel as well, for if your station is designed right, you can fill both gasoline and CNG/LPG at the same time.
Some states (NJ & OR) are likely to require an attendant - just like they do now for gasoline. For CNG, it takes a bit longer per gallon eq than a gas fill, and the tanks have less range. But it is much faster than a battery charge and gives more miles per fillup.
As the other author wrote, the $FSYS's PHIL and other similar systems are a very cool solution. Takes a bit of work to install with permits and contractors. But then it is as easy as a plug-in EV, and likewise, the fuel is on your local gas & electric bill. Still, the PHIL is not likely a solution for those without an attached garage. But the pricing and ease of use for on-site fill stations is outstanding, so most fleets do opt for them.
FSYS makes a home filling station called the PHIL
Takes longer to fill, depends on compressor.
Cylinder is bigger, they put in trunk on conversions.
Plenty of other info on the internet.
see link below or