don't bother....apparently S***l is made in SNG and is aged whereas B* is made in Oz thus the octane's higher. Or so have many said, perhaps a load of B.S. but my UK Caterham always performed better on B* that S***l,,,,
We do not get the s***l product in perth but from what I have heard from friends in the east it peforms better than the other product, But they also say the M***l fuel is better again