Good morning. I just acquired a 1977 Evinrude 85hp V4. I drained the gear case and no signs of water or metal shavings, but the oil was pretty dark and thick- looks like it has not been changed in a while! <br /><br />Would it be a good idea to flush the gear case before filling with fresh lube, and if so, what would I use to flush it with? My neighbor suggested gasoline, but I don't think that sounds like a good plan!<br /><br />Thanks<br />Chris
