It’s Wednesday, which means that it is once again time for the weekly fuel price update from the ministry of finance, for the coming week of May 7 to 13, 2026.
This week, retail prices of diesel of the B10 and B20 grades climb five sen to RM5.17 per litre, up from the RM5.12 per litre price of last week. Therefore, the Euro 5 B7 blend of diesel, which is 20 sen more per litre, also climbs, to RM5.37 per litre for the coming week. The retail price of diesel fuels in Sabah, Sarawak and Labuan stays unchanged at RM2.15 per litre.
For petrol, subsidised RON 95 under the Budi Madani RON 95 (Budi95) scheme remains at RM1.99 per litre; Malaysians with a valid driving licence are eligible for the fuel at a monthly quota that is temporarily adjusted to 200 litres per month. The price of unsubsidised RON 95 petrol climbs by five sen to RM4.02 per litre, up from RM3.97 per litre of last week, while RON 97 remains unchanged RM4.90 per litre.
These prices take effect from midnight tonight until Wednesday, May 13, 2026. This is the 20th edition of the weekly fuel pricing format for 2026, and the 383rd in total since the format was introduced at the start of 2019.
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I think for those who have genuine car knowledge, they also would agree that the reintroduction of RON 92 Petrol makes sense since it will be cheaper, albeit only slightly cheaper than RON95.
To those who think “car will break down with ron92” please do research. All if not most Honda, Toyota and Perodua cars need RON 91 minimum.
Also, RON 92 has nothing to do with pollution/environment, there are countries with Euro5 RON 92 petrol. Its only the Euro rating (Euro4M/Euro5) which determines the emissions/cleanliness level.
but long term is there any detrimental effects on the engine if it runs on low octane fuel ?
and if the ECU automatically retards timing if it detects low octane fuel then performance will be compromised right ?
There are negative effects if u run your car with RON lower than what your owners manual requires. Lets say owners manual says Min. RON 95, then running lower than that can cause issues.
But if Owners manual says Min. RON 91, then RON 92, RON 95, all is perfectly fine.
Its a good idea to check your owners manual or fuel flap for the Min RON requirement. Note that Required and Recommended are 2 different things.
.. the Bezza owner’s manual, page 1-4 says, “Use only unleaded fuel with its Research Octane Number 95 or higher.” under the heading ‘Fuel recommendation’. And on page 17-1 of the same manual, under the heading ‘Fuel’ & sub-heading ‘Fuel to be used’, it says, “Unleaded gasoline having RON 95 or higher”. It is obviously straightforward that the manufacturer Perodua implies that fuel with a RON less than 95 is not suitable for the Bezza and it is unlikely to matter to the owner, whether the terms ‘required’ & ‘recommended’ are two different things.
Most current models of Honda, Toyota & Perodua have engines that run on high-compression ratios of 10:1 or higher. Powering such engines on RON92 fuel requires a conservative ignition mapping in the ECU that emphasizes reducing ignition timing advance, and a fuel mapping giving richer air-fuel ratio to cool the combustion chamber during high load conditions, in order to prevent detonation/knocking/pinging. Thus, those engines would not likely achieve their potential peak performance & efficiency on RON92 fuel.
RON 92 Can reintroduce.
There are countries with Euro5 RON 92 petrol.
Most Hondas, Toyotas, and peroduas can run perfectly fine on minimum RON 91 petrol.
thats like saying “humans need to drink water, so at the minimum dirty drain water will suffice. no need cuckoo coway water filter”
What your saying is just your understanding not research.
RON has nothing to do with fuel quality or cleanliness or additives. RON is just the octane rating of the fuel. Most cars’ owners manuals state RON 91 as minimum.
Do note that most local petrol stations are presently equipped with sufficient underground storage tanks for RON95, RON97 & diesel fuels. Adding RON92 to the inventory would mean either adding another underground storage tank or repurposing an existing one at each station. Not to forget, the oil companies would also have to make major changes to their supply depots. In the end, it would depend whether it is worthwhile for the oil companies to do so if they are unlikely to earn more from the cheaper RON92.
Kepla hotak! Unsubsidized Petrol all time high at RM 4.02! Rakyat asing all suffering!