On the jet pump on my 55hp suzuki, there is a place to pump grease into the pump. Can someone tell me if I need a certain type of marine grease or just your standard grease will work? I bought this boat back in March and have only had it out twice. I read on the pump and it says to purge with grease after every use but it doesn't say which kind. I skipped one outing so I want to get grease in there before I take it out again this week. Thanks!