What lubricant can I use for the Key Combinator? February 07, 2025 15:18 Updated Answer #10 non detergent motor oil, 3 in 1 oil Applies To Key Combinators Additional information Related articles Commercial Hardware Mortise Cylinder Configurations for BEST 45 H and 45HW RGA vs. RMA BEST Throw Members CS Cores and 7AS Keys FAQ's Cores "C" & Keys "A" Series