Why does my positive battery terminal keep corroding Sometimes it is like a science experiment with an inch of white and blue powder?

The plastic case is cracked around the post allowing fumes to corrode the post. Buy some of those treated battery post washers and a can of battery terminal protector spray. Or, get a new battery.

Rick

I'm a retired ASE Master/L-1 Technician. I still keep current with the latest automotive technology. Visit my blog for cool articles and TSB's: http://free-auto-repair-advice.blogspot.com