You will find most lawn Crews just run the cheap stuff. They burn through it fast. I have a friend who is a part owner of a lawn care company and he said they just run whatever until they near the end.of the season. Then they use it up and stock with ethanol free, but drain everything for storage. They use the same fuel cans for snow removal stuff, so it never really sits.its 5 bucks a gallon here last i checked and i never ever ever see anyone at the pump i wanted to ask the lawn crew what they use but there not smart enough to blow the lawn after they mow they sometimes do it before