"E10 gas additive isn't al
"E10 gas additive isn't all that bad as some people claim to be. First ethanol does help burn and keeps the cylinders clean. Oh yea, and its good for the enviroment? lol Bad parts, if you have an older fiberglass fuel tank you need to replace it because it will eat thru. By older I mean made in early 80's. Second thing I've noticed thats bad is the stuff it leaves in the carb. Baiscally if the boat sits alot I think it eats up the tank alittle bit because I've notice some grey particals in the carbs, mostly on volvos if that makes sense. Also another bad thing which I forgot to mention is that ethanol is known to attract moisture which means water in the fuel. How to avoid that? Top off your fuel tanks and check your water/fuel seperator filter monthly. So there are alot of pros and cons with E10.
Cleaning out your fuel tank. Two different ways, if its easy to take out, pull it, drain it, rinse it, dry it. Upside down on an angle. The next way is easier but harder to get all the debris out is to pump it out."