Cost and Maintenance:
In most cases, CNG costs fifteen to forty percent less than the regular gasoline. However, the cost of CNG-powered vehicles are discovered to be about $3,500 more than the gasoline-powered ones. This is due to the high price of CNG fuel cylinders.
On the good side, since CNG-powered vehicles are increasing in popularity, prices are expected to become lower in the future.
In terms of miles per gallon, a regular gasoline-powered car averages thirty two miles per gallon while a CNG-powered car averages forty three miles per gallon.
Lastly, the car oil in a CNG-powered car does not need to be changed as often as the gasoline-powered counterpart because of the cleaner burning ability of CNG.