I was wondering how to change oil for my boat?

Question

it has a 3.8 omc v6 inboard I see the oil filter but no oil plug can anyone help me

Answer 1

I use the "Oil Boy", it has a 5 quart capacity and easily sucks the oil out right thru the dipstick.

Have fun.

Answer 2

Changing oil on a boat varies with the engine make and model, but most involve pumping (sucking) the oil out of the oil pan.   On Mercruser motors you'll notice a threaded hose connection on the dipstick.  Other engines have a "drain tube" connected where the drain plug would be.  Some depend on a hose small enough to go down the dip stick and into the oil sump.   There are several common things.  Run the engine until it's up to normal temp. before you change the oil. Keep rack of how high the oil was on the dip stick, and how much oil you actually pumped out.  When you put the new oil in, put in say 3 qts. then check the dipstick often as you add more.  Don't over fill and then check the engine after your first run.    Remove and replace the filter but be careful that the old gasket comes off with the old filter.   Compare the filter to make sure it's the same.  Tighten it according to instructions and check it for leaks after running the engine.  I recommend changing the oil once per season, at the end of the year.  That way old contaminated oil doesn't sit in the engine for months during the off season. I also believe in synthetic oil for boats 20 W 50 .  Good Luck!!!!!

Answer 3

You can get the tool to suck the oil out of the dipstick tube.  Most marine dealers will sell them.  Harbor freight sells them as well.