You are spot on John! He needs to play with a different kind of gas.
As a matter of fact, he will be getting later today an old truck (I assume a 70's 80's model) from a neighbor. The lady's father passed away a few months ago and when my husband saw the truck he offered to clean it up in exchange for a case of beer. He may end up buying it, but that is yet to be seen.
I guess I need to close this thread soon since my plant has been identified. I need to make a stake for it so I don't forget the name again