[thackney]

your home system compresses it to liquid....no?

No. The critical temperature of methane is -82.7°C or -116.9°F. No amount of pressure will liquefy methane above that temperature. At atmospheric pressures, it needs to be cooled to -260°F.

[virgil283]

your home system compresses it to liquid....no? ....don't know why I said liquid 'cause I know we are talking about compressed N.G....What kind of pressures are we talking about (in the vehicles storage tank)