I get the 10 per cent at Lowe's but didn't even know they kept Sea-Foam. I buy a gallon every spring when Tractor Supply put it on sale. And I have the Startron on the shelf. I went thru a nightmare a few yrs back with a dirty fuel system and learned a lot. P O had just spent 600 bucks on a carb rebuild. I learned from that one and did a lot of playing with all kinds of cleaners. I don't use Sea-Foam as much as I did. I mix my own cleaner and it works although I was called Stupid for doing so. Keeping these systems clean eliminates a bunch of problem with these things. I had read about the Mineral spirits but hadn't got around to that one. Marvel Mystery Oil is a Great old one that won't break the bank.