I am using Shell VPower racing 100 oct. only for that "race" feeling
and at least they give 3 Smart points per 1 liter
But, as You know, from sixties Simca recomended Shell >Simca aime Shell< so I have never used other oil than Shell, and when we domounted my 2,2 engine from Tagora with 600.000kms, everything was clean and timing chain guides which were changed 350.000kms ago, were like after cca 200.000kms.
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