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    I am clueless

    Well, not really, but I am having trouble balancing the logical, disciplined coleslaw against the emotional, superstitious coleslaw. I have a couple of diesel powered boats. The older boat has Cummins 5.9B diamond things, and I have been using Mobil Delvac 1 and Napa antifreeze and life has been...
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    exactly what is the deal?

    I have a couple of Yanmar marine diesels that seem to be a little more maintenance intensive than the Cummins I have in a different boat. The Yanmars (Toyota engine, light weight, high output, etc) specify 125 hour oil change and 250 hour or annual coolant change. Fine. . .but then I cruise...
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    Grease: Marine Environment

    For the last few years I have been using the Royal Purple synthetic (aluminum base?) grease for saltwater marine applications from trailer wheel bearings to universal joints, outboard motors, whatever. The stuff is brilliant. I have no complaints. However, I live out in the hinterlands, and my...
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