Hi fokes I am new to this fourm and I am looking for some help. I need to winterize my 2007 GTI Seadoo, the engine is a 4 stroke and that's all set. I am conserned about the what I need to put antifreese into. I Know about the battrie and all the stuff but could I get some help and maybe a web address to go to and get a pdf if Possible Thanks for the help Friends of the water.