First i give the characteristics of the brands...
Esso - Its neither powerful nor inferior, i use it quite often because for every 3,000 SMILES POINT (RM1-1POINT) i get RM45 worth of petrol.
Shell - I find it very gassy, thus not that powerful as compared to BHP and Petronas.
BHP - Its quite powerful as claimed by the BHP, my cars meter shows around 9.5L/100km as compared to others brands 10.5L/100km
Petronas - Average in FC but the engine really runs silent! and quite responsively powerful too..
Caltex - Not very up to my expectation, it runs noisy, less power and gives poor FC, sometimes runs like a diesel engine la...
In terms of economy the ranking is...
(1) BHP
(2) Esso
(3) Petronas
(4) Shell
(5) Caltex
But my preference in priority are
(1) Esso
(2) Petronas
(3) BHP
(4) Shell
(5) Caltex
BTW Who want to give you RM45 worth of petrol?:vroam: (for every RM3,000 petrol filled)