A bit if trivia for you guys.
Auto LPG is a lower heat burn on the BBQ, (Auto LPG-Propane/Butane mix compared to just Butane-BBQ gas) so the meats cooks all the way through. Not much good for the weekend warriors wanting to do the 1 minute charcoal on the outside, dripping blood in the center steaks.
I actually prefer the Auto LPG when doing a BBQ, everything is actually cooked right through. Only problem is the onions take a bit longer to cook.
When boiling an 80 litre kettle with Auto LPG, I found it to be very expensive. That was when Auto LPG was 35 cent Per litre. Now I have discovered electricity only costs 50 cents per hour, instead of $2 for LPG. Also, less chance of me falling asleep for ever in the shed.
One thing to watch out for is some shonkey operators filling their Butane (for BBQ bottle filling) tanks with auto LPG. (NAH you say. This couldn't happen in my area!)
Anyone finding their BBQ is taking much longer than usual has good reason to be suspicious. I have no links to the industry, what-so-ever, but I sure as hell know how to do it and it's not hard to work out how!