Pass42 wrote:
after the Vasoline has been on for a while, take your multi-meter.... one contact on the positive terminal, drag the other contact across the area where the vasoline is... you will see a voltage reading, because the normal slight venting of the battery will deposit some acid, which will adhere to the vasoline, creating a current path across the battery. This will accelerate standing discharge of the battery's state of charge. Better choice is to use a commercially available battery cleaner, with leak detector, followed by a commercially available battery protector spray......
Horsefeathers...You are scraping thru the Vasoline and making contact with the bare terminal under it.
It beats the red terminal protection stuff you can spray on...and never get off! Sticks to your skin...shop rags...tools and instruments...everything. Such a mess.