I drive a kembara, and recently tried the Ron 95xtra by chance, as there were no Shell station where i was located and the only one available was petronas within a mile of radius. Was not aware of what the 95xtra was, just wanted some fuel to get back home. Noticed that, acceleration on my car feels more powerful compared to how it was using shell. The pickup was much better and the car seems alot more powerful than how it was before. No idea of the FC though , as the Kembara is a fuel guzzler.