Beoshield is great stuff, and has wide applications as an aerosol. But I find it's also really expensive and not everyone wants or needs it's capabilities. The "old school" dielectric grease has also evolved ... today it isn't your grampa's grease for use on the tractor. As a silicone synthetic based grease I find it works really well in a nasty winter environment (want to see nasty winter conditions ... come and visit, I have the double whammy of heavy salt/ice melter applications on the roads for a long winter period and a generally higher amount of salt in the air when near the coast). I use the Prematex Delectric grease on my electrical connections (and different products on chains, gears, and cables) and I find it seals the connectors and stays in place better than a thin film product like Beoshield. It's also 10x cheaper ($3 vs $30+).