Home › Forum › Ask A Member › Brew for cleaning filthy gas tanks › Re: Brew for cleaning filthy gas tanks
December 4, 2017 at 7:32 pm
#68254
My tank has old fuel varnish – I believe. The smell is horrible. The inside of the tank has a coating more than 1/16th of an inch thruout. I didn’t think there was rust beneath but washing out the grease remover I used initially, the result was a rusty colored liquid. Have since put in acetone with lots of screws. Sounds like Castrol might not be the answer – may resort to undiluted ammonia. The tank is large for an outboard – probably more than a gallon.