I am in the middle of restoring my 1983 Ranger 372v. This boat has set for several years and I know that it still has a little fuel in the cells. I am getting ready to pull the cells out and clean them up. What is the best way to clean the inside of the cells? The fuel cells are aluminum, I am planning on cleanning the outside with a scotch bright pad and cleanner but how do you clean the inside and what do you use?

Thanks