Wow, how do you achieve that? I normally get about 360km with 30L of petrol. But my last full tank I managed to get 391km with 28.5L of petrol. My car's manual also. Mileage now is 14k km.

Daily journey: Morning and evening LDP jam from PJ to Subang. Evening from Damansara Heights to PJ. Night time from PJ to Dea Petaling and back.

I normally switch gear at about 2 - 2.2k rpm. Sometimes will pull till 4krpm, but rarely.

I guess it could definitely. The furthest I ever tried was taking the car for about 430km. That was a trip to Ipoh with highway and then driving around the town. Ended up pumping 33L of petrol. All along using Ron95.

Just a question. Has anyone tried pumping one full tank of Shell V-Power 97? Heard it's good to do it once in a few months.