The Only grease you should use on these is Silicone Grease. ... Vaseline and any oil base grease will break down the Nitrile Butadiene Rubber in 6 months to a year. Oils, like olive oil or WD40 or 3-in-1 oils are too thin and will not stay in place for long at all. There is NO suitable substitute for Silicone Grease.Oct 22, 2010