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Never tried it, but probably cheap enough to pick some up and test. I see WD40 makes a spray contact cleaner now too.I agree with Light in the Dark. I almost guarantee that electrical cleaner will bring back your percent load gauge. That is the number 1 indicator of dirty contacts for me. I've been real lucky with Wal-mart electrical cleaner. Deoxit is fantansic but I can't get it local.