Hmmmm the only silicone Lube i have its "smartparts" Sleek, that should be fine shouldn't it?as renie said, the washers dont really need lube, just the orings,vaseline can be use on orings but after time it will have a bad effect on them, your best using a silicone based lube,as this will not damage the rubber in the orings and you only need i light amount on them,