what, the petrol price raised again?

i was watching the news while waiting for my housemate getting dressed up for our tarawikh prayer. one of the headlines attracted me - increment of the petrol price (again!). after midnight, the RON 95 is going to be sold at RM1.80/litre (before: RM1.75) and RON 97 is at RM2.05/litre (before: RM1.80). previously, i used to hear people complaining about the irrelevant petrol price and now after having my own car, i want to complain too. haih!even a cent really matters!

anyway, what's the difference between RON95 and RON97?

The Difference between RON92, RON95, RON97 and RON99

Many said that RON92 oil is the > older oil, only suitable for older cars or for cars that uses carburetor only. There are also some that said that RON92 oil will make the engine dirty and also said that RON92 oil is less powerful compared to RON97 and RON99. Before you make any false assumptions, let us see what the real meaning of RON is. RON stands for Research Octane Number. Octane number or octane rating refers to the gasoline ability to withstand auto ignition (knocking) inside the engine.

Higher octane number refers to higher ability of the oil to fight auto ignition. In other words, it means that RON95 is harder to ignite compared to RON92. Different vehicles are designed to be use with different octane number of oil. Higher octane number oil is basically designed for high performance vehicles such as sport vehicle and racing vehicle. Why is that so? This is to avoid premature ignition of oil inside the engine because of auto ignition, which happens before the spark plug ignite the fuel. This phenomenon is known as knocking. Knocking is not wanted because it reduces the performance of vehicle.

The right usage of octane number based on design and adjustment of engine will maximize the performance and effectiveness of the vehicle. Modern vehicles are equipped with knock sensor which enables it to adjust its combustion timing automatically according to the oil octane number to avoid knocking or premature ignition of oil.

Not all vehicles require high octane number petrol. You can check your vehicle fuel requirement inside the guide book of your vehicle or you can simply check the minimum Octane Rating at the back of the fuel lid cover of your vehicle. Most cars can still use RON92.Higher RON number does not means that it is more powerful. It means that it is harder to ignite. It is also cost you more (link)

hmm, then i shall go for RON95. cheaper.

p/s: i've already fulled my fuel tank! i predicted, before midnight, the petrol station will be 'full house' with vehicles.

'as the sun rises
i open my big eyes
as the petrol price raises
i want to have a loud cry!'