2006 75hp optimax oil

yellowbelly

Petty Officer 2nd Class
Joined
Jul 11, 2008
Messages
153
bought the motor and the old owner ran premium plus in it and its getting low, i have two gallons of opti oil waiting can i just blend in the opti oil when it gets low or do i have to flush the system out?
 

yellowbelly

Petty Officer 2nd Class
Joined
Jul 11, 2008
Messages
153
called mercury and they said u can blend the two together with no problems
 
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