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Hi, can I use semi synthtic oil in my 1980 shadow11 or what is best any advise would be appreciated
 

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Oil

I use semi-synthetic oil for my Shadow as advised by RR-owners in The Netherlands (with some additive friction fighter). Works fine :) .



:arrow:
 

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I'd be more concerned about ZDDP content than synthetic vs. dino. A lot of the newer formulations have much less ZDDP in them (as it degrades catalytic converters).

Jeff.
 

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Agree with Jeff, ZDDP has been on the decline. Try Redline oils as they have 'normal to a bit high' ZDDP as Mobil 1 took away much ZDDP a few years back. Have lab tests confirming this, which the lack of enough ZDDP was causing problem on my tracked '85 Ferrari.
 

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Just read that last line in Steven's note.

I use Mobil 1 in my '79 308GTB with no problems at all. Then again, it sees no track time.

-rick
 
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