Motoring

The great RON95 controversy

Motorists and oil companies quarrel over new fuel quality

<strong>Signs of confusion</strong>: The first sign says the pump is being repaired while the second apologises for running out of RON97 quota. The last simply says, “finished”.

By Henry Matakim

A month after its launch the verdict is still out on RON95, a fuel that is supposed to be cheaper and environmentally friendlier. Thousands of motorists complain that they spend more on the new petrol that makes their cars run slower. The oil companies and the ministry of domestic trade, cooperative and consumerism deny this. So, can the motorists be wrong?

Last week, petrol stations suddenly ran out of the premium RON97 fuel which sells for 2.05 ringgit (60 cents) a litre, 25 sen more than RON95. That forced many motorists to use the poorer fuel; but others whose cars could only run on RON97 were stranded.

<strong>Victoria Duenas</strong>: Going with the cheaper fuel.Motorist Victoria Duenas says she goes for the cheaper RON95 which emits less pollutants because of its lower sulphur content. “I’m not technical, so I can’t tell the difference. But my husband does. He says it makes his car sluggish.”

Cheaper it is not, as many motorists point out. “We are paying for an inferior fuel what we used to pay for a premium product,” says Ali Ahmad who prefers RON97 as his Proton Saga labours to climb a slope to his house in Kota Kinabalu.

Shell says RON95 is of the same quality as RON97. Really? If so, why then is RON97 sold at a 25-sen premium over RON95?

The government says it still pays a monthly 304m-ringgit subsidy for RON95 although the higher selling price saves it 33m ringgit in yearly fuel subsidies.

Oil companies said the shortage of the higher quality fuel was due to a shipment delay. But they were not convincing. Motorists said kiosks had never run out of petrol before. The exception was when companies refused to produce more diesel oil because of differences with the government on its subsidised selling price.

Thus the industry's explanation disturbed many motorists who questioned why there was no shortage of RON95 if there was indeed a delay in fuel shipment. The cheaper fuel should dry up faster than RON97 since the oil companies have insisted that it is more popular. The firms are not talking any more. But the shortage of RON97 tells a tale of inefficient supply planning or motorists’ preference of the more expensive fuel.

In the same week, Shell Malaysia launched a new version of RON95 and RON97 in peninsular Malaysia. Its FuelSave Unleaded is supposed to save motorists money of one litre in fuel for every tank of 50 litres bought at the same price as the older petrol. Why Shell deems it fit to introduce a new petrol to compete with its existing products is anybody’s guess. But FuelSave will not be available in Sabah until December. – Insight Sabah

Posted on 15-10-2009 10:00 am

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  • hmm...

    By CHEA SIN ONG on 27-10-2009 03:54 pm

     I think the advertisement on TV is misleading. 

  • same quality BUT lower performance

    By Christopher on 19-10-2009 10:35 am

    Thank you SHELL and We must be grateful to Shell's honesty and openess to the public. In this respect I would like to focus on the following 4th paragraph of their clarification in Daily Express.
    "If a vehicle manufacturer specifies that an engine needs a minimum RON of 95, it means that the engine will operate satisfactorily on RON 95 without risk of damage. It doesn't necessarily mean that the optimum engine performance is achieved with this RON value," she said.
    The above statement clearly indicates that Shell is protected against any claim in the event your engine malfunctions. All the fuel manufacturer needs to comply is.... "minimum RON requirement" to ensure their product will not risk damages. However, the next statement is key to the whole issue.... "It doesn't necessarily mean that the optimum engine performance is achieved with this RON value." Ok fair enough, thats the truth, the whole truth, nothing but the truth.
    Common people, you can't expect putting in something that cost lower and still get the same performance. Performance in this context is ... acceleration 0 to 60, climbing power, torque or pick-up, economy.... this is all simple logic and accept it. 
    Anyway let me clear up the blurrish mystery in this topic. I think a lot of people wants to know why RON 95 cannot give us the same engine performance as RON 97. I will try to explain as simple as it can be. First of all my explanation will be based on acceleration, torque or pick-up, climbing power. This is the condition where you can feel the difference of RON 95 vs RON 97. (please do not think that the effects of RON 95 is immediate after you have just pump in the fuel because you must remember that you still have RON 97 in your spare chamber of the fuel tank. To really feel the effects of RON 95... this may only be true after the second time you pump in RON 95, be honest people).
    You may already have done your research on what RON 95 is and one of the things they say is that a fuel with RON 95 spec burns faster or easier to burn, thus it seems to make you think that you should get power faster or there shouldn't be any reduce in performance. Actually this statement can be true but it all depends on the condition of time/day when you had your engine tuned. If your vehicle is tune based on RON 95 then your engine can produce maximum performance. And if your vehicle is tune based on RON 97 and now you are using RON 95, then your engine cannot produce maximum performance. Lets get that clear as crystal. WHY? read on...
    You may also have known or heard it before about engine timing? In simple terms "engine timing" is about determining when your spark plugs will ignite the fuel in the combustion chamber. Lets say your engine timing is set at 8degrees BTDC with RON 97 and now you use RON 95... if you have a modern engine (new) then most likely your engine have knock sensors to prevent engine knocking. Because RON 95 is a fuel that burns faster, your knock sensor will instruct the engine computer to re-time the engine timing. This is where/why/what in simple layman terms why your engine will not be able to produce the same performance as RON 97. It is all a matter of engine tuning and what your engine is tune for ... RON 95 or RON 97.
    I know you want to know what is knock sensor or engine knocking??? ok lah... in simple explanation... if your engine is tuned using RON 97 and the timing is set to 8 degrees BTDC (before top dead center) to achieve maximum performance.... and now you are using RON 95... then try to imagine this... while the piston is going up before reaching top-dead-center... it is suppose to ignite the fuel at 8 degrees BTDC but because you are using RON 95 a fuel that burns faster/easier... ignition would occur earlier than the original setting, thus combustion will occur while the piston is still in its upwards path, but this early combustion due to RON 95 will develop an effect of forcing the piston on a downward path thus creating what we call a "Knock" condition.... piston still going up but combustion is pushing the piston down.... in this situation... you cannot achieve maximum performance. For older engines that do not have knock sensor... sorry la guys... engine knock will occur and unless you re-tune your engine... it will carry on knocking:)
    Wow! why do I have this feeling that I've created more confusion and ... here comes the repercussion from engineers, scientists, manufacturers... bah bring them on ... 
    Thats my 2 cents:)
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