1) I think it is absolutely fine to pump fuels from
different companies. But people just don't like to change company,
dunno why. Petrol is petrol, no difference in chemical make up even
if it's different companies like Shell, Caltex, Esso, etc. The only
diffference is the RON rating.
The only thing that's going to harm the engine is too low
octane, causing the engine to knock. So be sure to read your car's
manual to find out what's the lowest RON rating your car's engine
can take. Usually the higher the capacity the engine is, it will
need fuel of higher RON rating. Small engines maybe minimum RON92,
bigger engines maybe minimum RON95.
2) Not too sure whether Shell or Esso is better. But a lot of
people say Shell's petrol is more powerful, no matter is it RON95
or RON98.
Ya lor, I also heard some say Caltex more power than another
brand I cannot say for fear for my life.
What is the official answer?
Are petrol say 98 unleaded the same whether bought from Caltex,
Esso, SPC or Shell?
If there is some difference, can we have the official scientific
answer please?
