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#1
10-22-2007, 09:55 PM
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| oil & gas mix Hello I just bought a 1989 mercury 15 HP outboard & I would like to know the proper oil type & mix ratio. Thanks  |
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#2
10-22-2007, 10:02 PM
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| Mercury Recommends 50:1 Ratio After break in. It never hurts to mix it a bit richer. Recommend to use TCW-3 Type Outboard Oil. Last edited by cbsr : 10-22-2007 at 10:03 PM. Reason: Addtion of text |
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#3
10-23-2007, 07:44 AM
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| Most engines today run 100:1 if your 50:1 then run 50:1 mixing richer will do nothing but oil plugs. If it was better to run richer Mercury would say so. Yamaha perfected 100:1 oil ratio in 1984. |
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#4
10-29-2007, 01:15 PM
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| Quote:
My High Perf Merc ran at 32:1 50:1 will be fine for that 15 hp Dd |
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