"for service MS"

Could someone tell me the meaning of "oil labeled For Service MS" We
can find this on the manuals of our aircooled engine

I found SAE 30 API SF oil for use on 4 stokes Honda grass cutters
(aircooled) could this be a Service MS?

João

wrote:
> Could someone tell me the meaning of "oil labeled For Service MS" We
> can find this on the manuals of our aircooled engine
>
> I found SAE 30 API SF oil for use on 4 stokes Honda grass cutters
> (aircooled) could this be a Service MS?
>
> João

MS is motor severe and it's an obsolete rating. I'd just go with oil
with and API rating of SE or better.

Tony

"Anthony W" > wrote in message
news:HFAgg.4829$im3.1555@trnddc01...
> wrote:
>> Could someone tell me the meaning of "oil labeled For Service MS" We
>> can find this on the manuals of our aircooled engine
>>
>> I found SAE 30 API SF oil for use on 4 stokes Honda grass cutters
>> (aircooled) could this be a Service MS?
>>
>> João
>
> MS is motor severe and it's an obsolete rating. I'd just go with oil with
> and API rating of SE or better.
>
> Tony

If I remember correctly, when they went over to Sx ratings (Cx for diesels)
around the 1980's, MS became SC. Anything higher than that should do.

Charles of Schaumburg

Thanks for the replies.

It's funny that we can find more technical information on internet
saying that monograde SAE30 oil is better on same applications.

The sentence "is the oil that lubes not the additives" may be is right
for some engines.

FYI I'm using SAE30 but sometimes is hard to find.

João


n5hsr escreveu:
> "Anthony W" > wrote in message
> news:HFAgg.4829$im3.1555@trnddc01...
> > wrote:
> >> Could someone tell me the meaning of "oil labeled For Service MS" We
> >> can find this on the manuals of our aircooled engine
> >>
> >> I found SAE 30 API SF oil for use on 4 stokes Honda grass cutters
> >> (aircooled) could this be a Service MS?
> >>
> >> João
> >
> > MS is motor severe and it's an obsolete rating. I'd just go with oil with
> > and API rating of SE or better.
> >
> > Tony
>
> If I remember correctly, when they went over to Sx ratings (Cx for diesels)
> around the 1980's, MS became SC. Anything higher than that should do.
>
> Charles of Schaumburg