Which Petrol

[Syd0rxl]

quick question, is it true high octane gives more Kms to the car? i just bought a VTI jazz, and currently running on 91 Uld... I am looking forward to using higher octane fuel but bit worry it will drink even more... currently its on 8.8 / 100 ks........

[teh_mechanic]

quick question, is it true high octane gives more Kms to the car? i just bought a VTI jazz, and currently running on 91 Uld... I am looking forward to using higher octane fuel but bit worry it will drink even more... currently its on 8.8 / 100 ks........

Its a common misconception but higher octane fuel does not give better efficiency. It allows higher combustion ratios as it burns cleaner and more evenly,hence why it also helps reduce pre ignition (pinging) and things like that .

A denser fuel will give slightly better fuel economy,i think shell optimax used to be a denser fuel. I ran that once in my 2 stroke race go kart and it ran much richer than any other fuels,wasnt good.

To add to the poll,i cant keep up with all the different fuels today,i use bp ultimate in my b16