The V8 Owners Forum -

r2d2hp wrote:Hi Denis,

I use the Comma Sonic 20/50 so be interested in what you have heard and is it backed up by anything factual. It seems to have good levels of additives based on the spec

Regards
Reg

No Nothing Factual, as I said I vaguely remember it mentioned on this forum some time ago. The data sheet does show some Zinc in it but is the amount significant I don't profess to know much about oils.
Is there such a thing as Comma 20/50 motorway oil?
Regards Denis

Update.
It was Comma 20/50 Motorway I was thinking of.
Apologies for the senior moment.

Denis