Hey, I'm using Mobil 8000, green colour one, 98 lahz, I find
quite good leh... .
But I feel that 5000 (95) quite rough compared to 8000
(9
, rpm drop only a little when change gear 
Morever full tank also cost about the same.
For info, Esso = Mobil = ExxonMobil 
I sometimes pump Shell XO loh, when I pamper my bike!~~~
Actually I feel that petrol is about the same loh, think only
slight difference in their properties.
Singapore Petrol can trust lahz,
M'sia one......, I dare not comMent.
Caltex Wu Ya Hor bo?
Really that goOd ar?
Anyway, I'll always trust Mobil 1.
(Cos my hme here got the station liao, kekeke)
-="Does the inside of Ur fuel tank rust?"=-