Been running with the propane on since 1958, never had a problem. The rental TT in 1957 had an ice box!
If your vehicle is propane powered don't forget to turn it off before you move the vehicle, it might explode if you don't!!
RV propane systems are designed, built, tested and certified to be on while traveling. So I do.
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '05 Odyssey