The problem is a gum from the tanks and lines. sea foam not a winner on it!Older fiberglass is the worst. When you buy about a hundred gallons of fuel you really notice the fuel cost. When you have to pump it out because the Government insists on a program of using subsidized corn to fuel your engine it really sucks. I read several years ago that if all the cropland in America were planted in corn it would give us less than a weeks supply of fuel. Last year there was an article telling about tankers stopping at US ports to ad alcohol to the mix and then proceeding to Europe to sell the fuel. The reason for the stop? It allowed them to get a subsidy for the entire cargo even though it wasn't even sold here. No I'm not a fan, the alcohol in the fuel is driving up food cost around the globe.
