wally mart marine gc oil is ok …..some folks don’t bother with seals if not terrebly bad they just replace the oil mid season.. resealing a GC is tricky but ok after a while when you do a few ….. lots of utubes
dropping the GC on a 5.5 involves other tricky stuff so changing oil may be simpler
http://www.youtube.com/watch?v=SVOedhzPP7M
http://www.youtube.com/watch?v=EY2HrEdp5vg
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