Been using this product since 1976 with all my vehicles. Microscopic oxidation of electrical connections occurs over time and this product greatly diminishes the issue. My career was installing Telephone Central Office Switching and Power and we used No-Ox religiously. When replacing the battery refresh the earth/ground/negative cable connector at the frame. Your electrical system will function at peak performance when there is less microscopic oxide at the connections. I coat all fuses and connectors I can get at and use before reconnecting any connector.

Electrical Contact Lubricant - Conductive Electrical Grease | Sanchem, Inc.

 

Thanks , interesting. I use a bit of dielectric grease occasionally where I think a barrier may help longevity, but this stuff looks the business. Just the thing on some of the older cars with sometimes problematic wiring.