Should work just fine. Using two stroke oil in a crank case is a "work
around" for when motors burn oil. Less smoky, while the machine is
running.

However, being two cycle means that the four cycle only runs on two
cycles, and the power may be a bit lower. Cause it's losing two of the
cycles. The extra cycles get dropped on the lawn, and have to be put
back after each lawn mowing. They are easy enough to find.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"mm" wrote in message
...
OT?, what happens if you put 2-cycle oil in your lawnmower crankcase?

A friend did this his push rotary mower, probably with a B&S engine.
I can't get a good answer how much.

http://oilstore.stores.yahoo.net/penaircool2c.html

It says nothing about viscosity.

Does he have to change the oil?

I thank you and my friend thanks you.