For a typical Kelisa (no modd):

Petronas gives more KM, but engine is somehow very noisy

Shell gives a smoother drive, quieter engine, and better aceleration

Esso/Mobil gives smooth drive but less KM and power compared to Petronas

BHP similar to EssoMobil but 1st few tanks, engine knocking appeared!

So, Shell is best for a spirited drive where u can zoom here, zoom there.. Petronas is for KM, while EssoMobil and BHP is for collecting points~

*tests done over 4 year period~ But the new shell super + economy formula didn't try yet~

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Added on February 26, 2009, 10:56 pmNot necessary~

Fuel is cheaper but is not as pure, so mileage may not be as good..

Btw, if u change stations regularly (Shell-->Mobil-->BHP-->Shell-->Petronas)..FC will be very very bad!

This post has been edited by jVIPERs2: Feb 26 2009, 10:56 PM