1999 4.3L...

[DanOnTheBoat]

Hello, so I bought a boat... its a pretty nice 1999 bayliner 1850ss with a 4.3L Vortec in it. Last owner owned it for about 13 years and always maintained it, always winterized it, etc... the boat runs great, the owner fired it up and it ran really well. Was holding very steady 600-700rpms on a cold engine. The owner said he hasn't used the boat much in the past few years. The boat was stored under an open shelter all the time with no covers on, at a lake house. Can condensation from temperature swings, weather and water get into the oil to make it look slightly milky? Its not creamy or milky(cappuccino) I checked the block no cracks nothing like that.... oil cap looks clean, also top inside of engine looks clean. Im honestly worried and hoping its just condensation in the oil... has anyone had this issue?

 

[DanOnTheBoat]

Forgot to mention, I have the batwing style manifolds. Could they be the issue of water going to oil? I heard some things about them and how they aren't the greatest... Engine runs flawlessly, starts right up with no hiccups and idles really well at a steady 600-700rpm on a cold engine.

 

[nola mike]

Yes it can. I'd run it at operational temp for a while and see what happens