Yes, use straight 30 weight oil.

--
Tony
my boats at http://t.thomas.home.mchsi.com

"Jodon2" wrote in message
...
Just had a new MERC factory rebuilt engine put in 2 months ago and now
it's
time to change the oil in it. Marina that put engine in put in straight 30
weight oil and he said to stick with this grade. Is this ok? Thanks.
Joe