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What would you do?
Ended up with about a tablespoon of lower unit oil in my engine oil resevoir for my 2011 125 opti. Let's just say this:don't use empty oil jugs to dispose of your old lower unit oil and leave them lying around.... So should I siphon all the oil out? Or would it be sufficiently diluted it shouldn't cause a problem. There is about 1 tablespoon of lower unit oil in a gallon of Opti oil. I am thinking of draining it in the spring.
Another lesson learned!!!
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Mercury 3L/4 Stroke/Verado Moderator
The book answer is that the tank should be completely drained, cleaned, refilled with appropriate Optimax/DFI oil (and the the oil pump primed).
In reality, one tablespoon in 1.5+ gallons is a relatively small amount, but honestly... you're better safe than sorry.
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