- make sure it is periodically inspected
- keep a hawk eye and a dogs nose out for anything suspicious
- get a fire extinguisher and a fire blanket, learn how to use them
- make sure the vehicle is very well ventilated
- always ventilate for a few minutes before starting / igniting anything
- if you suspect something is wrong check with soap, not with a match
Gas explosions in RV's and mobile homes are unfortunately not rare at all.