Try a search, The title Heat cycle method, the author would be by Fuel Man. It's better for you to do the search as there's a ton to type and would take a little to do it all. The heat cycle method gives the longest life expectance for an engine. 2 gallons is a little low for an engine, and from what I have read the break in procedure might have where it went bad. But there are a ton of variables when it comes down to engine life. I would suggest getting a fuel filter if you dont already have one installed. Hope that helped