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Posted
Hi all,

We were told this was 20-50 engine oil. Can anyone confirm this?

 

 

 

 

 

 

Lewis,

 

This is what is known as a Reference oil, for development testing of engines in laboratories and test beds. Not for vehicle use!

 

The stencil marking is a bit smudged, but it lines up with ER-9, which was actaully a 10W/30 grade.

Posted

Hi chaps,

Thanks very much for that. I would hazard a guess it's a heavier weight than 10W but you could well be right. It was definitely worth asking on here before any damage was done, so thanks again.

Regards, Lewis

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