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Message
I have used the MMO/2
cycle mix in the past but for the last 100 hours I have been using the Wal-Mart
Marine 2 cycle oil. After reading up on the different classifications of 2
cycle oil (most brands are all in one now) and looking at the temperature
profiles for the apex seals I concluded that almost anything would do a better
job than crankcase oil of lubricating the seals. And 2 cycle certainly
leaves less residue than crankcase oil.
Mornin' Ed,
Is MMO and 2-cycle oil close to the same
thing? When I try to rationalize using
one over the other, I come up with one other issue. Our pre-mix oil does
get scavenged into the crankcase to some extent. MMO is made to be used in
fuel, and oil, so that's not a problem. I can't say that I've ever heard
anyone comment on the effect that 2-cycle oil has in our crankcase. I've
wondered if this alone is a reason to prefer MMO over 2-cycle oil.
Another question just came to me. Does oil
injection cause oil to be scavenged into the crankcase? I'm assuming it
would be less than what we get with pre-mix, though some must make the
trek. I wonder if Mazda considered that when deciding to use
crankcase oil for the apex seals? Of course originally, they weren't using
the dripper injectors, but rather injecting the oil into the fuel/air
stream at the carb.
Cheers,
Rusty
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