Inside hull cleaner

Hi all,
I’m getting the boat ready and need to clean the inside of the hull, but having a devil of a time trying to get the discoloration/hand prints/dingy film off. I have an aluminum hull with the typical off white color. I used the “instant” type cleaners (oxalic acid) on the outside with good results but it doesn’t seem to do the job on the inside. Any suggestions??

Thanks,
Don

My last resort is oven cleaner, it will amaze you.

I found a solution of 50% vinegar and 50% water works well. I keep a spray bottle with the solution and try this on the hard to remove spots. Good luck!

Try Scrubbing Bubbles bathroom cleaner. I use it on everything. It really works well and have not found it to damage anything.