Mercury - Quicksilver 2-4-C Marine Grease with Teflon Multi-Purpose Lubricant 8 oz Tube 802859Q1. Overview. If you've spent time around boats, you know that a little grease can save a lot of frustration later. The Mercury Marine 802859Q1 Quicksilver 2-4-C Marine Grease with Teflon is the trusted go-to lubricant for protecting moving parts in harsh marine environments. This lithium-based, multi-purpose grease won't wash out, even when fully exposed to water. It's ideal for steering systems, throt