"HK" wrote in message
...
SteveB wrote:
Yesterday, a poster answered my post where I bought some bottles of
Johnson outboard oil. IIRC, he said to be sure it was TC-W3.

I looked on the bottles, and this is TC-W II.

Now, I go googling, and come up with the terms two cycle and two stroke.
To my understanding, they are the same, using a firing system that has no
valves, and the oil/gas mixture goes on both sides of the piston, versus
the four stroke where the crankcase oil is isolated from the combustion
chamber, has a valve train, and it is called a four stroke. Never heard
one referred to as a four cycle motor.

Can someone give me the short answer on if this TC-WII Johnson oil is
good to use in my '89 Merc 4 cyl TWO STROKE motor?

Is there a discernable difference between TC-WII and TC-W3 oil?

I've run a lot of oil and a lot of gas in a lot of engines. Only burned
up one chain saw, and that was when I had too much beer and used straight
gas in it. OOps. Other than that, I have never had a problem, and have
to say I probably ran stuff a lot oilier than I should have, but that's
better than the chain saw episode.

Does this difference in oils really make a difference other than to anal
personalities? What is the difference between type 2 and type 3 oil?

Steve

I made suggestions to you about this earlier.
The differences in two stroke oil types are significant.


I am sorry. I had a TBI five years ago, and forget easily. I didn't want
to put you out by having you have to comment on it again. Sorry.

Steve