Posted 7/22/2016 08:03 (#5425095 - in reply to #5425032) Subject: RE: Aluminum Cleaner
NW Minnesota
Call your dealer or Aluma and ask them, I can't remember the stuff they recommended but I think it was like AB2000? I'll look for the jug this weekend, it will not turn the trailer acid white. I had tried some Hotsy branded stuff previously and it did nothing.