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500 EFI Oil Questions

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Old 04-12-2008, 12:03 PM
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Default 500 EFI Oil Questions

What oil and filters are you running on this engine? The engine says to run SAE 40 but I was thinking maybe a 20w50 for the hot days at havasu. Are you using the stock oil filter or a fram oil filter.
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Old 04-12-2008, 01:27 PM
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I had the 500EFIs in 2 different boats and I used the Mobil 1 15w50 synthetic oil in them without any problems. As for the filters, I used Fram oil filters and Napa gold fuel filters. I have no idea what the number was on the Napa filters, but I believe the number on the Fram filters was HP5.
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Old 04-12-2008, 02:11 PM
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I ran the Mobil1 15w50 for over 400 hours and the motor still looked great on the inside. I use an AC Delco PF932-C oil filter. Its twice the suze of a standard filter, has very good filtering and flow characteristics according to hydrocruiser's research and holds one more quart of oil in the system than stock.
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Old 04-12-2008, 02:12 PM
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Mobil ONE
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Old 04-12-2008, 04:19 PM
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mobil 1 15-50

mobil 1 filter M1-302
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Old 04-12-2008, 04:25 PM
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mobil 1
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Old 04-12-2008, 04:47 PM
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In the last boat that I had, I ran the Royal Purple 20w50 and really liked that.
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Old 04-12-2008, 06:45 PM
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Amsoil Series 2000 20/50
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Old 04-12-2008, 07:43 PM
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i use Royal purple 20w50 and a stock merc oil filter
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Old 04-12-2008, 07:50 PM
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dean gellner might chime in

some wieght penzoil and a fram hp? filter was all he would LET me run
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