What kind of mileage does a CNG car get?
A very important question that many people ask is how much it will cost to operate a CNG vehicle. Luckily, CNG is priced in a unit that is called a “gasoline gallon equivalent”, or GGE. Cars get the same mileage on 1 GGE as they do on 1 gallon of gasoline. All of the prices for the USA on this site are in GGE, and that means that you can fill a car that is running on CNG for the equivalent of as little as $0.87 per gallon in Utah and get the same mileage as someone driving the same car running on gasoline, when they are filling their car for three or four dollars a gallon. As an example, Honda makes a natural gas Civic. I own a 2002 model year Civic and I get about 30 miles to the GGE in the city and about 36-40 miles to the GGE on the highway. This is exactly the same as the gasoline version of the car gets. So when you look at prices on this site (at least prices in the USA), you can compare them directly to the price of gasoline down the street.
