Yes reginos - Fifth Gear did a comparison some time back - and the power loss was much more noticeable with bigger, more high performance engines. There's little point buying an expensive sports car and then skimping on fuel grade. I think John H's OPC behaved cheaply.


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RT Moderator - 997.1 C2S GT Silver/Cocoa, -20mm sports suspension/LSD, PSE, short shifter, SportDesign rims, Zuffenhausen collection