Yeah I'm using 20/50 now , thank you , I've been worried for the past week about it
I was told that the reading was bad so I changed the oil to 20/50 it did have 15/40 in when I was told this
Low Oil Pressure On Idle
Started by
spritey
, May 09 2015 07:31 PM
Best Answer Cooperman , 11 May 2015 - 01:35 PM
Ah, 15w40 is too thin.
The best easily available oil for the classic Mini is Valvoline VR1 20w50 mineral.
With the classic Mini the problem is the gearbox which needs a thick-ish oil. The old design of engine also means that a thicker oil than the current oils is needed with as high a ZDDP level as possible.
A good rule-of-thumb with the A-series engine is that so long as there is an absolute minimum 10 psi of oil pressure for each 1000 rpm when fully warm the engine if OK. Below that sort of figure it might be due for a re-build with new big-end and -main bearings and a new oil pump, etc.
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#17
Cooperman
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Uncle Cooperman, Voted Mr TMF 2011
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Posted 11 May 2015 - 01:35 PM Best Answer
Ah, 15w40 is too thin.
The best easily available oil for the classic Mini is Valvoline VR1 20w50 mineral.
With the classic Mini the problem is the gearbox which needs a thick-ish oil. The old design of engine also means that a thicker oil than the current oils is needed with as high a ZDDP level as possible.
A good rule-of-thumb with the A-series engine is that so long as there is an absolute minimum 10 psi of oil pressure for each 1000 rpm when fully warm the engine if OK. Below that sort of figure it might be due for a re-build with new big-end and -main bearings and a new oil pump, etc.
#18
spritey
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Mini Mad
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Posted 11 May 2015 - 02:29 PM
Are great thanks appreciate your time , made my day :)
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