“20% better MPG”
Likely because a gallon of gas has 20% more BTU in it than a gallon of CNG. Good grief a gallon of gas must weigh a lot more than a gallon of CNG, which is not liquid, correct?
Seems like liquid propane would be preferable to LNG. Why am I wrong?
CNG & LNG are different. CNG is gaseous. LNG is chilled to reduce its volume.
I could be wrong on the whole BTU thing. all i know is CNG is less efficient than gas in the engine i have, which is a gas engine.