I purchased a 2000 boat last year with a 175HP Jet drive. Being new to the boating world I purchased a service manual for this engine. I did the necessary steps for storing the boat.(fogging plugs & carb). The manual also saids to drain & refill the drive housing and stator assembly with Quicksilver HiPo gear lube. My question is can I wait until spring to do this or do I have to do it now before the winter? Thanks. Glenn