I have twin DF - 50 Suzuki outboards 2005 and have discovered after almost 1000 hours that they have internal anodes that should have been checked and replaced long ago. My servicing mechanic was unaware of them, and believe it or not, there is absolutely no mention of them anywheres in the Suzuki Service Manual or in the small Owners Manual. I am now experiencing water in the engine oil, which is likely caused by corrosion attributable to the lack of anode protection. Does any other owner have information or experience with this? I'm contemplating suing the mechanic and Suzuki.