Battery Additive

Thermoil offers a new patented, inexpensive battery oil additive that, when added to a new or existing battery, can help increase battery life, eliminate corrosion, reduce water consumption, limit volatility and keep the battery working in temperatures ranging from -50 to 400 F. Previously available only in 5 and 55 gallon containers, this 100 percent guaranteed additive now comes in a 12 ounce bottle.