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Old 04-02-2013, 09:15 AM
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mikeg205 mikeg205 is offline
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Join Date: Aug 2011
Boat: 1995 Pro Star 205 5.7 Liter
Location: Plainfield - Joliet, IL
Posts: 11,396
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Indmar Manual 1994-2002 calls for Racing oil - 15w40. So to me they are still specifying higher ZDDP oils. I like the synthetics because of their shear strength in high temps under load.
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