Rod McInnis wrote:
"A.Z" wrote in message
om...

The owners' manual for my 2001 Mercury 4-stroke (90) does not indicate
how to drain the crankcase oil. How do you do that?



On my 50 Hp Mercury outboards the crankcase oil has to be sucked out the
dipstick tube. The tube has a male hose thread on it so you can easily
attach the hose from a hand pump and suck the oil out.

Rod

The owner's manual for my 2001 Mercury 30 4-stroke covers both methods,
i.e. tilt and remove drain plug, or pump out the way it went in.

Any opinions on which method is preferable? (I haven't had to do it yet
- motor has only been in service a month despite model year).

Sunny