White Lithium Grease. Dielectric grease, on the other hand, is a waterproof grease that repels moisture out of a connection. Because it is non-conductive, it does not allow the flow of electrical current. It is silicone based, which makes it an effective barrier against moisture and salt precipitate.Click to see full answer. Also to know is, can I use white lithium grease on battery terminals?The grease that should be applied is white lithium grease. The idea is to apply the grease to the terminal after you have connected and tightened the battery cable. This will create a layer of grease between the conducting surfaces and the surrounding air and moisture, and thus, prevent corrosion.Beside above, can I use regular grease on electrical connections? It is not necessary to employ such a skillfully formulated grease to keep moisture from the terminal of a 12-volt battery. Indeed, it is common that general purpose marine grease can be used as an electrical insulating grease in 12-volt systems. Beside this, what kind of grease is good for electrical connections? Dielectric grease is often used to seal the connection between spark plugs and spark plug wires. Dielectric grease, or tune-up grease, is a silicone-based grease that repels moisture and protects electrical connections against corrosion.What do you use white lithium grease for?WD-40 thick High-Performance White Lithium Grease lubricant provides great protection for heavy duty, metal-to-metal applications. It can be used outdoors regardless of weather and temperature conditions. This makes it ideal for use on automotive connections, tow bars, gear and brake mechanisms and CV joints.