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  #1  
Old 27-02-2009, 10:31 AM
Zul.H Zul.H is offline
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Default Jenis minyak RON - Kalu macam ni, boleh lah pakai minyak merah jer lah..murah..

RON and your car's engine (source motortrader.com.my)


RON92 has been used 'mainly by motorcycles' but this is wrong. RON92 is also suitable for many modern engines and even the latest Honda models such as the Civic and CR-V sold in Malaysia are tuned to use RON91 so RON92 is not a problem (in fact, some Honda models sold in Indonesia are even tuned for RON88). All Perodua models are tuned to run on RON90 and that is a very large number of cars on the road. Those who can use RON92 can save a few sen per litre which, over the long term, still represents a saving in motoring costs (

Many motorists have not purchased cheaper RON92 even though their car engine may be able to use it either through ignorance, lack of understanding and even being discouraged by pump attendants who often call this grade of fuel 'Lama' (old). However, there are also valid reasons why some motorists have avoided RON92 even though it can be used for their car. This concerns the additives in RON92 petrol which vary from company to company. The additives are a vital part of the formulation and help to keep the inside of the engine (especially the fuel delivery system) clean so it runs efficiently. It is these additives, upgraded from time to time, which are often the subject of advertising claims of 'cleaner running', 'better fuel economy', etc.
Chevron Malaysia gives the same additive package, called 'Techron', in both its RON92 (Silver) and RON97 (Gold) petrol. The Platinum grade is not sold in Malaysia.
The thing is that because it was perceived in earlier years that RON92 was used by 'low-tech' engine like marine engines, lawnmowers and motorcycles, the petroleum companies felt that it was unnecessary to spend extra money on additives and according to a source in one company, there is almost no additive in that company's RON92 petrol.

Companies like Chevron Malaysia do, however, provide an identical additive package (which the company calls 'Techron') for both grades of their Caltex fuel. As such, the superior benefits which are advertised are not limited only to the RON97 grade.

In Japan, Regular grade has been RON95 for a long time.Even high-performance engines like the Volkswagen/Audi/Skoda FSI engine, the 1.6-litre engine of the Suzuki Swift Sport and the 1.8-litre engine of the old Ford TX3 need only RON98 at most to run at optimum.

High-performance models like the Civic Type-R, Swift Sport and Lancer Evo need high octane fuel (RON98) but such cars are sold in very small numbers in Malaysia

There are often misconceptions with regard to the technical aspects of high and low octane fuel so here's what it is all about. Firstly, if your car's engine is tuned and recommended by the manufacturer for a minimum of RON92, then you are not going to get increased performance using RON97 or RON99. Just because the octane is higher does not give you more 'power' because it does not work like that in combustion. Latest Honda CR-V, a SUV, can run on RON92 without any problem

The second thing is that octane requirements are not dependent on bodystyles so it is incorrect that 'SUVs run on higher octane' (which appeared in the news reports). As mentioned earlier, the Honda CR-V has been tuned to run on RON92 and a number of other SUVs can also use this fuel. It is all dependent on the manufacturer and the engine and even then, large engines can also run on low octane. The Ford Escape 3.0 V6, for example, is tuned for RON92.

There was also mention that RON95 will be of a 'lower quality' than RON97 and this is probably what is causing concern among motorists now, as evident in the discussions in our MTM Forum. The quality will be lower only if the additive package is minimal compared to the higher octane fuel which petrol companies have typically promoted more strongly. However, under the new plan, if RON95 becomes the lower grade and it is intended for the majority of motorists, it would be irresponsible of the petroleum companies (with the exception of Chevron) to do what they have been doing with their RON92 petrol, ie putting in little or no additives. If RON95 becomes the high-volume fuel in Malaysia, then it would only be logical that it would get a superior additive package.

The powerful FSI engine of the VW Group requires RON98 petrol but if a lower octane is used, the ECU will adjust the ignition timing to prevent improper combustion.Knock sensors which are attached to the engine and detect knocking

Having cleared away some myths, let's now look at some issues concerning the use of petrol which is of an unsuitable octane for the engine. If the engine is tuned to run with RON93, then you cannot use a number lower so RON92 is out and you would have to use RON97 (at this time). If you use RON92, a condition called 'pinking' or 'knocking' is likely to occur and this is the result of improper combustion. The condition gives off a sound like marbles rolling inside the engine, especially if you are going uphill. If it happens long enough and often enough, damage can occur to the engine because those are sounds of unwanted explosions inside the combustion chambers. In some cases, these explosions occur as the piston is rising and create a downward force on the piston. Loss of power also results during pinking.

Using the right fuel octane or a higher one prevents this condition. In more expensive engines, there are also devices called knock sensors which are like little microphones that detect knocking. When such a condition is detected, the engine control unit (ECU) will adjust the ignition timing to compensate. This usually eliminates the knocking but there will also be slight reduction in power output.

However, a Shell engineer did once make a case for using an octane higher than recommended, mainly for older engines. His explanation was that with older engines, the accumulation of deposits inside the engine can cause a slight increase in the compression ratio and though not always the case, a higher compression ratio usually requires higher octane fuel. This being the case, if the compression ratio in an older engine gets higher, then there is a remote possibility that pinking can occur so it may be better to use the higher octane petrol even if a lower one is recommended.

How would you know what is the right RON for your engine? This information is usually stated in the Owner's Manual and the minimum RON is specified. There may also be a sticker on the fuel lid cover which indicates the correct RON. What's important is that you do not use an octane lower than that specified. When in doubt and the manufacturer or local representative cannot help, then the safest bet is to use the highest octane possible which, at this time, is RON97. Only a small number of models would need a higher octane than that and quite likely, they would have knock sensors in their engines.

The inside of the fuel lid on many cars will have a sticker to indicate the correct petrol octane required

There are also 'octane boosters' available in some stores and these are additives which are added to the fuel by pouring into the fuel tank. Engineers in oil companies usually avoid commenting on such additives as they feel that there is a possibility that adding something else could upset the optimised formulation of their petrol and instead reduce benefits. There is also the possibility that these additives may leave behind deposits after combustion, an undesirable by-product that will affect performance in the long run. So it's up to you to use them if you are convinced that there are benefits to be gained.

While on the subject of petrol, it would also be useful to make it very clear that leaded fuel is no longer sold at the pumps in Malaysian stations. A law was passed some ten years ago on this but it seems that many motorists still believe that Regular RON92 petrol contains lead. This confusion could be due to lack of initiative by some petrol companies in removing stickers on the pumps which used to specify that they were dispensing leaded fuel or simply ignorance of facts.Older nozzle (top) with larger diameter for pumps which dispensed leaded fuel and the one with a narrower diameter for unleaded fuel.Leaded petrol was confined to RON92 and in most cases, it had a red dye to make it more obvious.


Kesimpulan :

1) Kete biasa bleh pakai minyak RON 92 jerlah.(atau minyak merah)

2) Pakai yang minyak RON 97 pun x de guna, bazir wang jer..

3) Semua minyak di mesia skrang nih adalah UNLEADED, jadi semua kete biasa (x amik kira kete performance macam civic type R, Evo 8 , Impreza dsb) boleh guna. Cuba cek kat korang nyer manual book kete, apa minyak yg direkemenkan (RON aper)..kalu ko pakai lebih drp tuh, maknanya x de guna gak..

4) kete kat jepun pon pakai RON 95 jer...abis tu kete mesia?

5) Sykt minyak kat mesia jrg mempromosikan benda nih, pasal kalau kita beli yg minyak hijau, lg banyak untung diaorg..sebab idorg amik untung per litre based). Satu jer sykt minyak yg promosi benda nih, Caltex...perasan tak iklan dia ada kat TV?


p/s : Maaf lah kalau dah ader thread nih, tapi sebenarnya ramai yg tak tau, mereka kata minyak hijau lebih baik...walhal sama jer bergantung kepada enjin..setakat kete biasa..mmg tak de beza pon..

just sharing, aku pon dah mula guna minyak RON 92, it save a lot of money..sebab aku biasa travel...
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  #2  
Old 27-02-2009, 10:35 AM
badrush badrush is offline
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aku pn merasakan begitu..

tapi baru ni fakta yg aku jmpa.

tekaan aku tepat la..


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  #3  
Old 27-02-2009, 10:35 AM
achoy76 achoy76 is offline
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ron92 selalu x de. habis memanjang padahal memang x jual
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Old 27-02-2009, 10:36 AM
hazri99 hazri99 is offline
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bulan 7 nih ron95 masuk.. lg murah dari ron97..
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  #5  
Old 27-02-2009, 10:40 AM
goldtrader goldtrader is offline
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oo thats why laa ada orang cakap pakai ron92 ni lebih bagus
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Old 27-02-2009, 10:44 AM
akecema akecema is offline
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bro kreta yg jenis baru malaysia xboleh guna RON92
nnt pemendakan carbon tinggi
boley jahanam kereta

kalo kereta lama boleh.
member aku guna putra ok..

tp ader dgr member GC ckp guna RON92 kat SATRIA NEO telah menjahanamkan keretanye
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Old 27-02-2009, 10:49 AM
goldtrader goldtrader is offline
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ada sorang member kat CG ni pakai minyak merah kat kembara dia .. huhuhuhu
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Old 27-02-2009, 10:50 AM
Zul.H Zul.H is offline
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Quote:
Originally Posted by akecema View Post
bro kreta yg jenis baru malaysia xboleh guna RON92
nnt pemendakan carbon tinggi
boley jahanam kereta

kalo kereta lama boleh.
member aku guna putra ok..

tp ader dgr member GC ckp guna RON92 kat SATRIA NEO telah menjahanamkan keretanye

ape2 pun..rujuk car manual dan sticker kat tutup minyak tu..

>>kalau state kat situ..UNLEADED FUEL ONLY..maka bolehlah guna RON 92 atau RON 97


>>kalau kat situ dah tulis RON 92....maka bolehlah guna RON 92 atau RON lagi tinggi atau RON 97

>>kalau kat situ dah tulis RON 97....maka bolehlah guna RON 97 atau RON lagi tinggi atau RON 99

Guan lah yg direkeman atau lebih tinggi . Guna yg lebih tinggi x semestinya kete lebih ok


Ket Mesia ni dah tak de minyak yang LEADED...
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Old 27-02-2009, 10:50 AM
ibnuqadir ibnuqadir is offline
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ron ni menatang ape..? hehe
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Old 27-02-2009, 10:57 AM
goldtrader goldtrader is offline
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Quote:
Originally Posted by ibnuqadir View Post
ron ni menatang ape..? hehe
Research Octane Number ataupun Rota Osobogo Naznacheniya ataupun orang kampung aku cakap minyak keta
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