They do have a stabil ethanol product now ( non marine specific) and I just put it in my gas cans. I know from experience the stuff is crap. Had to replace the carb on My 10 horse snowblower( $110) and the engine on my tractor ( 15.5 Kohler) the carb would leak into the crankcase. I had put a shutoff on the line but my son forgot to shut it off so the next time it was fired up it was toast. I also purchased a new push mower 3 years ago and bought the extended warranty. The carb had to be replaced once, the shop said Kohler would cover it but most other engine companies don't. It was never right ( I'd have to use starting fluid after about 3 months) so after the factory warranty was up,( 2 years) I took it back and got a new mower. Haven't had any issues with the car but it is all new except tank and sending unit. I expect I'll be replacing that next winter.