Which oil

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bynack

bynack

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58
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kendal
I have rebuilt my series 3. But the engine is a metric 5mb 2.25 petrol.

I have put 20/50 oil in. But have been told it should be 15/40?

Anyone enlighten me please
 
I will watch this with interest as I also have a 5mb all be it diesel and I run 20/50 in mine.
 
20/50 is really for tired old lumps, though I cannot see it hurting until next oil change due.
 
lynall said:
20/50 is really for tired old lumps, though I cannot see it hurting until next oil change due.
Click to expand...
Fairly sure the 1600 in the mga takes 20/50 as well.

Interestingly the tractor which should fit that description is straight 30wt.
 
dag019 said:
Fairly sure the 1600 in the mga takes 20/50 as well.

Interestingly the tractor which should fit that description is straight 30wt.
Click to expand...
Two old tractors I have just serviced took 15/30, I said are you sure? seems awfully thin for an old clunker, from what I could gather same oil was in engine and rear end and hydraulics.
 
lynall said:
Two old tractors I have just serviced took 15/30, I said are you sure? seems awfully thin for an old clunker, from what I could gather same oil was in engine and rear end and hydraulics.
Click to expand...
yep, that is the same with the major, original book spec is S.A.E. 30 H.D in engine, gearbox, and rear end (also the hydraulics on a major). Although there is a school of thought to use modern multi grade oils as you can still get HD30 I run that.
 
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