Here is a post that you might find interesting.
This comes under the topic of "sometimes it works and sometimes it doesn't". An once or two of mineral oil in flooded batteries does help reduce the out gassing and corrosion in the battery tray. One can debate this, but when I had flooded batteries it did work. If you do a search of iRV2 using "mineral oil" you'll see many discussions on this topic.
NOTE; I am not responsible for typos, poor grammer or misspelled word !
04 Itasca, Meridian 34H, 330 Cat/2003 CR V Toad
1933 Ford 3 Window,as seen in Bye Bye Birdie
Pvt. E1 Retired, Shadow Hills,Ca.