Quote:
Originally Posted by Chris & Nean
The oil in the container in the pic you posted Petej is in-fact a semi synthetic oil, it is NOT fully synthetic.
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It is a Group 3 oil which can legally be called fully synthetic - it's not a 'real' synthetic as a Group 4 or 5 oil is but Shell is entitled to call it that. It complies with Jaso MA2 so should not cause clutch slip.
The term semi-synthetic is meaningless - it doesn't mean that it is half synthetic as the term implies. The synthetic component could be 1% which could be a Group 3 oil with the remaining 99% being a Group 2 oil.