2003 4.3l mpi Marvel Mystery Oil mixture

TheGoodLife

New Member
Jun 22, 2012
14
Babylon, Ny
Boat Info
2003 Sea Ray Sundancer 280da
Engines
Twin Mercruiser 4.3 mpi w/ alpha drives
Does anyone know how to fog the 4.3 MPI's with Marvel Mystery Oil? This boat is my first non carbureted one and I have no idea how to do it. I heard it goes in the fuel filter, but I am not sure how much and when to do it (do I do it when putting the pink through with the earmuffs?). Sorry to sound like such a newbie, I just don't want to mess this up. Thanks in advance.

-Bill
 
drain everything first before you that method, you might crack the block otherwise.
not sure of the exact ratio but , http://www.*******.com/merc/Bullet/01/01_15.pdf
replace the *`s with b,o,a,t,f,i,x, no comma`s
just as easily to simply pour in the A/F after fogging the engine down.Using a fogging mix allows you to get it in the injectors to protect them.
 

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