RON 95 vs RON 97 fuel test – which should you use? Бензин ron 95


RON 95 vs RON 97 fuel test

“Should I use RON 95 or go for the more expensive RON 97 fuel?” That’s a very common question among our readers and general Malaysian motorists alike.

Needless to say, there are countless theories on this matter scattered across the Internet: some for, and others against the use of higher-RON petrol fuels. We at paultan.org thought it would be much simpler – not to mention conclusive – to just compare the two fuel grades directly, head-to-head against each other.

So RON 95 vs RON 97 – which one’s better, or rather, which one should you use? We gathered two units of the Volkswagen Polo Sedan and two Jetta TSIs to find out.

Why two pairs of vehicles, we hear you ask? Well, you’ve heard it all before: modern, more technologically advanced engines respond more to higher-grade fuels, you get bigger gains with a turbocharged engine compared to a naturally-aspirated one, so on and so forth. So, we though we’d cover both bases at once.

The Polo Sedan with its naturally-aspirated 1.6 litre MPI (multi-port injection) engine represents traditional, old-school vehicles, while the 1.4 litre twin-charged (turbocharged and supercharged), direct-injection TSI motor in the Jetta plays for the other team here.

First up, the test itself. We arranged a lengthy 230 km-odd route, including heading into the Kuala Lumpur city centre on a regular working week day (during rush hour, no less), then on to equal shares of both highways and twisty backroads to Tanjung Malim and back.

Heavy stop-wait-and-go traffic, clear and busy highways, tight B-road stretches – we covered them all, and then some. It’s as real-world as it gets, we think, as far as single-day fuel tests go, encompassing all variations of driving conditions in Malaysia.

Before we started, we had emptied all the cars’ fuel tanks as much as we dared to, and filled them up with their respective fuels the day before the test. The cars were then driven around for a bit to get the engines accustomed to each fuel type. To maintain absolute parity between the vehicles, each car’s tyres were also pumped up to the recommended pressures.

On to the actual fuel test. For consistency’s sake, each car was filled up to the brim using the three-click method (wait for the fuel nozzle to automatically stop, repeat three times after 10 second intervals) with the same re-fuelling kiosk.

So we now had one Polo Sedan running on RON 95 fuel, with the other on RON 97. Ditto with the pair of Jettas. Off we went, then.

The four vehicles travelled in a loose convoy throughout the entire journey, each taking turns to lead. We changed drivers at the halfway point (between each pairs) to eliminate the effects of different driving styles (and the drivers’ weights too, of course). The air-con settings were kept identical between the two pairs too.

To keep the test as “real-world” as possible, the drivers followed the natural flow and speed of other road users, which meant that we kept a minimal distance to the car in front during traffic jams, and cruised between 100 to 130 km/h on the fast lane through clear highways. It wouldn’t have been realistic any other way, right?

At the end of the route, the convoy covered exactly 236.7 km of mixed driving conditions. Each car was then re-fuelled to the brim again with the same process described above (identical three-click method, using the same petrol kiosk) to see the exact amount of fuel used.

The results are as such: the Polo Sedan on RON 95 used precisely 18.160 litres of fuel, while the one on RON 97 used 17.612 litres. Those figures correspond to 13.03 km per litre (7.67 l/100 km) for the car on RON 95, and 13.44 km per litre (7.44 l/100 km) for the RON 97 test car. That’s a difference of 3.15% in favour of RON 97 (using RON 95’s number as the baseline).

As for the Jettas, the RON 95 car used 17.505 litres (averaging 13.52 km per litre or 7.40 l/100 km), compared to the RON 97 test car’s 17.857 litres (13.26 km per litre or 7.54 l/100 km). The difference stands at -1.92%, in favour of RON 95. And yes, this surprised us too.

Refer to the table above for the full results. In short, with the Volkswagen Polo Sedan 1.6 MPI, using RON 97 fuel brings a fuel economy gain of 3.15%. The Jetta 1.4 TSI, on the other hand, suffered a small deficit of 1.92% with the higher-grade fuel.

Now, the cost factor comes in. As things stand right now, RON 97 fuel (RM2.00 per litre) carries a 17.65% premium over regular RON 95 (RM1.70 per litre). Even allowing for a 5% margin of error either way, this test suggests that the cheaper fuel is still the way to go from a financial point of view.

As for claims that higher RON fuel offers better engine performance, it has to be said that none of the four drivers felt any discernible difference between the two fuels. Read into this what you will, of course, but based on our results, it looks like the paultan.org crew will continue to feed our personal cars with RON 95 fuel. Over to you: do you use RON 95 or RON 97, and why?

paultan.org

RON 95 PETROL FUEL FAQ + USER REVIEW

RON 95 Petrol has been introduced in Malaysia and nowadays, there are many petrol station especially Petronas and Shell already provide the RON95 grade of petrol. Here we would like to share most of the frequently ask question and facts about RON 95. we hope this article hepls you to gain some good info about the new fuel formula RON95. For those who have the experience using the RON95, share it here.

Octane quality is one of the many properties of fuel that is often associated with power and improved engine efficiency that is measured by the international standard for fuel, RON.

RON 95 PETROL FUEL FAQ + USER REVIEW

RON 95 PETROL FUEL FAQ + USER REVIEW

RON95 helps us to have better environment. For Example, Petronas Primax 95 meets Euro 2 emission standards and has reduced sulphur content of 500 ppm (parts per million), which makes it better for the environment

What is RON?

  Answer : RON stands for Research Octane Number rating for unleaded petrol. It determines the petrol`s `anti-knock` quality or resistance to pre-ignition or detonation as it burns in the combustion chamber. Knocking occurs when the fuel-air mixture in the cylinder explodes instead of burning in a controlled way. This shockwave moves within the combustion chamber, and creates a metallic `pinging`. It measures the combustion properties of the fuel.

 Can all Proton & Perodua vehicles (including those with carburettor fuel system) use the RON 95 petrol?

   Answer : Yes

  I have been using RON92 petrol for my car with carburettor fuel system.  What will happen to my vehicle if I switch to RON95?

   Answer : There is no effect to your vehicle engine.

 I have been using a particular brand of RON97 petrol for my Proton & Perodua car, will the engine of my vehicle experience “knocking” when using RON95? 

   Answer : No, because all most of nowadays car engines setting allow the use of petrol with RON95 and above.

 Do I need to get the engine of my vehicle tuned, if I switch the petrol to RON95?  Do I need to add petrol additives which I can buy from auto parts shops?

   Answer : No. Not necessary.

 Will petrol additives help prevent “knocking”?

   Answer : It will depend on the additives contents.

  Can I mix the RON 95/RON97 petrol for my car? 

  Answer : Yes, there is no problem mixing the various grades of petrol.

 What is your advice for vehicles that experience engine knocking? 

  Answer : For cars that experience “knocking”, it is advisable to send them to Service Centre to check for carbon deposits in the combustion chamber and also the ignition timing.

   What do the numbers 95 and 97 mean?

   Answer : The numbers 95 and 97 represent the minimum RON value of a fuel that will prevent “engine knocking”. 

 

 What is “engine knocking”? 

   Answer : Engine knocking happens when fuel combusts prematurely before ignition by the spark plug, which causes a “knocking” effect, resulting in loss of power. Using the appropriate minimum RON fuel that is recommended by your vehicle manufacturer will ensure that combustion happens at the high time to avoid “engine knocking”. 

 What is the minimum RON requirement for my car? 

   Answer : Your vehicle’s manual should specify what minimum RON value fuel to use. Sometimes, this information is printed on or around the refuelling cap. If unsure, please check with your vehicle manufacturer, authorised vehicle distributor or with an authorised mechanic.   Can I use RON 95?

   Answer : That depends on your engine. Your vehicle can use RON 95 if it is designed or set for RON 95 or lower. However, the best thing to do is to check with your vehicle manufacturer, authorised vehicle distributor or with an authorised mechanic.

  What RON works best for my vehicle?

   Answer : You should always use a fuel that meets or exceeds the minimum RON recommended by the vehicle manufacturer or authorised mechanic.  

 Can I mix RON 95 with RON 97? 

   Answer : As long as the fuel meets or exceeds the minimum RON required by the engine, mixing is fine and should not damage your engine.

 

In conclusion, there is no side effects of using RON95 petrol instead of RON97 but you must check first what is the minimum RON number requirement for your car in your car manual or at the fuel cap.

Jom guna RON 95! =)

kereta.info

Chevron explains RON95 octane fuel

Click image to view presentation, navigate with next/prev buttons

Chevron, the company which operates Caltex stations here in Malaysia, has released some information to help consumers with the upcoming switch to a RON95 and RON97 fuel offering at the pumps from the present RON92 and RON97 offering.

The government plans to hike up the price of RON97, and price the new RON95 between current RON92 and RON97 prices. We’ve talked about RON95 and octane before a few times in the past, but here’s some from the horse’s mouth.

The presentation deck is actually quite interesting as it explain the differences between RON, MON, octane satisfaction requirement survey results in countries that offer a wider range of fuel octanes on sale compared to Malaysia, and other interesting bits such as the percentage of sales of each octane grade in various other countries.

Click the image above to view a presentation about RON and fuels in general (use the prev and next buttons to cycle through the slides), or look after the jump for a FAQ as well as thumbnails of all the slides.[zenphotopress sort=title number=99 album=331]

RON: Frequently Asked Questions

1. What is RON?

Apakah RON?

RON (Research Octane Number) is a rating of petrol. It determines a petrol’s ‘anti-knock’ quality or resistance to pre-ignition or detonation as it burns in the combustion chamber. Knocking is an abnormal combustion and should be prevented as it is damaging to the engine.

RON (Research Octane Number atau Nombor Oktana) adalah satu kadar petrol. Ia menentukan kualiti mengurangkan ketukan enjin (anti-knock) atau rintangan terhadap pra-nyalaan atau peledakan semasa bahan petrol terbakar di kebuk pembakaran. Ketukan adalah satu aktiviti pembakaran yang luar biasa dan sepatutnya dicegah kerana merosakkan enjin.

2. What petrol is sold in Malaysia currently?

Apakah petrol yang dijual di Malaysia pada masa kini?

Service stations in Malaysia currently retail petrol products of RON92 (Silver with Techron at Caltex) and RON97 (Gold with Techron at Caltex). At the moment, vehicles requiring RON95 and below are also utilizing RON97.

Stesen-stesen di Malaysia kini menjual produk petrol RON92 (Silver with Techron di Caltex) dan RON97 (Gold with Techron di Caltex). Pada ketika ini, kenderaan yang memerlukan produk RON95 dan ke bawah juga menggunakan produk RON97.

3. What vehicle types are able to use RON95?

Apakah jenis-jenis kenderaan yang boleh menggunakan petrol RON95?

Most vehicles are able to use RON95. However, it’s best to refer to the Original Equipment Manufacturer’s (OEM) recommendation in your car manual or check the back of the petrol filler lid of your car for the recommended octane rating.

Kebanyakan kenderaan boleh menggunakan RON95. Walau bagaimanapun, pengguna perlu merujuk kepada nasihat Pengilang Kelengkapan Asal (OEM) yang tertera di buku panduan kenderaan atau semak pada belakang penutup tangki gas untuk kadar oktana yang disyorkan.

4. (i) I am a RON92 consumer. Won’t switching to RON95 damage my vehicle’s engine?

Sebelum ini, saya adalah pengguna petrol RON92, adakah pertukaran kepada RON95 tidak akan merosakkan enjin kenderaan saya?

The main difference between RON92 and RON95 is their octane ratings, indicated by the number in the product name.

Using petrol of a higher RON will not hurt your car. You just need to find a suitable fit for your car and driving style. It’s best to refer to the Original Equipment Manufacturer’s (OEM) recommendation in your car manual or check the back of the petrol filler lid of your car for the recommended octane rating.

Perbezaan ketara antara produk RON92 dan RON95 adalah kadar oktana masing-masing, seperti yang ditunjukkan pada nama produk.

Menggunakan petrol dengan kadar RON yang lebih tinggi tidak akan memudaratkan kenderaan anda. Anda hanya perlu mengenal pasti RON yang sesuai untuk kenderaan dan cara pemanduan anda. Walau bagaimanapun, pengguna perlu merujuk kepada nasihat Pengilang Kelengkapan Asal (OEM) yang tertera di buku panduan kenderaan atau semak pada belakang penutup tangki gas untuk kadar oktana yang disyorkan.

(ii) I am a RON97 consumer. Won’t switching to RON95 damage my vehicle’s engine?

Sebelum ini, saya adalah pengguna petrol RON97, adakah pertukaran kepada RON95 tidak akan merosakkan enjin kenderaan saya?

The main difference between RON97 and RON95 is their octane ratings, indicated by the number in the product name.

Using petrol of a lower RON may or may not hurt your car. You just need to find a suitable fit for your car and driving style. It’s best to refer to the Original Equipment Manufacturer’s (OEM) recommendation in your car manual or check the back of the petrol filler lid of your car for the recommended octane rating.

Perbezaan ketara antara produk RON97 dan RON95 adalah kadar oktana masing-masing, seperti yang ditunjukkan pada nama produk.

Menggunakan petrol dengan kadar RON yang lebih rendah tidak akan memudaratkan kenderaan anda. Anda hanya perlu mengenal pasti RON yang sesuai untuk kenderaan dan cara pemanduan anda. Walau bagaimanapun, pengguna perlu merujuk kepada nasihat Pengilang Kelengkapan Asal (OEM) yang tertera di buku panduan kenderaan atau semak pada belakang penutup tangki gas untuk kadar oktana yang disyorkan.

5. Should I empty my car’s petrol tank before refueling with RON95?

Adakah saya perlu mengosongkan tangki minyak kereta saya sebelum mengisi petrol RON95?

This depends on the amount of remaining petrol in the petrol tank. The smaller the amount, the faster you can derive the benefits of RON95.

Ini terpulang kepada amaun baki petrol di dalam tangki petrol anda. Semakin kurang bakinya, semakin cepat anda menikmati kelebihan RON95.

6. What is the effect on the performance of the engine if petrol of a different RON is mixed together?

Apakah kesan jika berlaku percampuran RON95 dengan RON97 atau RON92 ke atas prestasi enjin kenderaan?

It is not recommended to mix different RON levels as this might result in sub-optimal performance. For example, if you have added a lower-than-recommended RON in the mixture, this can result in knocking and can cause a loss of power.

Ianya tidak disyorkan untuk mencampur kadar RON yang berlainan kerana ia mungkin akan menyebabkan prestasi yang kurang memuaskan. Contohnya, jika anda telah menambah RON yang lebih rendah dari kadar yang disyorkan di dalam campuran tangki anda, ini boleh menyebabkan ketukan enjin serta kehilangan kuasa kenderaan.

7. What is the impact of RON95 usage on the environment?

Apakah kesan penggunaan RON95 kepada alam sekitar?

At present, there is insufficient data to adequately prove that a higher or lower RON grade poses an environmental issue.

Pada masa kini, masih tiada fakta sahih yang cukup untuk membuktikan kesan penggunaan kadar RON yang lebih tinggi atau rendah kepada alam sekitar.

8. Do I have to always pick the highest octane rating petrol for my vehicle?

Perlukah saya sentiasa memilih petrol dengan kadar oktana yang tertinggi untuk kenderaan saya?

The highest octane rating may not necessarily be the best for your car. You should choose a suitable fit for your car and driving style. It’s best to refer to the Original Equipment Manufacturer’s (OEM) recommendation in your car manual or check the back of the petrol filler lid of your car for the recommended octane rating.

Menggunakan petrol dengan kadar RON yang lebih tinggi tidak semestinya yang terbaik untuk kenderaan anda. Anda perlu mengenal pasti RON yang sesuai untuk kenderaan dan cara pemanduan anda. Walau bagaimanapun, pengguna perlu merujuk kepada nasihat Pengilang Kelengkapan Asal (OEM) yang tertera di buku panduan kenderaan atau semak pada belakang penutup tangki gas untuk kadar oktana yang disyorkan.

9. Does a higher RON indicate a more environmentally-friendly fuel product? How about greater power?

Adakah penggunaan kadar RON yang lebih tinggi menentukan produk petrol yang lebih mesra terhadap alam sekitar? Bagaimana dengan lebih kuasa?

The true difference between the grades of petrol lies in an engine’s requirement. This does not guarantee a promise of greater power or a more environmental option as the number increases. This infers that cars using RON products greater than their engine requirements may not be necessarily gaining better performance than if they adhered to their car Original Equipment Manufacturer’s (OEM) recommendations.

Perbezaan sebenar gred petrol tertakluk kepada keperluan enjin kereta masing-masing. Ini tidak menjamin kelebihan kuasa atau lebih mesra alam sekiranya nombor oktana meningkat. Ini bermaksud kenderaan yang menggunakan produk RON dengan kadar yang lebih tinggi daripada keperluan enjin masing-masing tidak semestinya menikmati prestasi yang lebih baik berbanding dengan menggunakan kadar RON yang disyorkan oleh Pengilang Kelengkapan Asal (OEM).

paultan.org

95 Oktan yada 97 Oktan Benzinden Hangisini Kullanmalıyız?

Oktan sayısı, teknik anlamıyla, benzinin vuruntu kalitesinin değerlendirilmesi için kullanılan bir ölçüt bir başka ifadeyle benzinli motorun vuruntuya karşı direncini gösteren bir yakıt parametresidir. Oktan sayısı ölçümleri RON ve MON olmak üzere iki şekilde yapılır. RON: Research Octane Number. Motor devrinin 600d/dk, ateşleme avansının 13 derece, hava+yakıt sıcaklığının 52.3 santigrad derece ve soğutma suyu sıcaklığının 100 derece olması durumunda tanımlanan oktan sayısı değeridir.

MON: Motor Octane Number.Motor devrinin 900d/dk, ateşleme avansının değişken, hava+yakıt sıcaklığının 150 santigrad derece ve soğutma suyu sıcaklığının 100 derece olması durumunda tanımlanan oktan sayısı değeridir.

Oktan Sayısı: RON ve MON değerlerinin ortalamasıdır.

Benzinli Motor Vuruntusu Nedir?

Bujinin silindir içindeki yakıt hava karışımını ateşlemesinden önce, silindir içi basınç ve sıcaklığının artması sonucu karışımın kendi kendine alev alması ve böylece oluşan basınç dalgalarının  buji kıvılcımı nedeniyle oluşan basınç dalgaları ile silindir içinde meydana getirdiği girişimdir.  Bu durum çok ince bir tını şeklinde duyulabilir. Basınç dalhalarının bu girişimi sonucu motor parçalarında yorulmalar artacak ve motorun ömrü azalacaktır.

Vuruntuya neden olan faktörlerden bazıları kısaca; motorun sıkıştırma oranının artırılması, erkene çekilmiş ateşleme avansı, fakir karışımlarda çalışmak ve  oktan sayısı düşük yakıt kullanmaktır.

Oktan sayısı yüksek benzin yakıtının vuruntuya karşı direnci yüksektir. Dolayısıyla karşımın kendi kendine alev alma kaabiliyeti düşüktür.

Oktan sayısının artırılmasında kullanılan katkı maddeleri; kurşun tetra etil, kurşun tetra metil, metanol, etanol, izo-propil alkol, tetra bütanol, metil tetra butil eter, etil tetra butil eter, tetra amil metil eter olara  sayılabilir. Özetle alkol tabanlı bir takım katkı maddeleri kullanılarak benzin yakıtının oktan sayısının yükseltilmesi söz konusudur. Alkol yakıtların ısıl değerleri benzinden düşüktür bu nedenle oktan sayısı yükseltilen bir benzin yakıtının ısıl enerjisi düşecektir.

Araç üreticeleri kataloglarında kullanılması gereken yakıtın oktan sayısı hakkında bilgi vermelidir. Günümüzde katalitik konvertörlü araçlarda kurşunsuz benzin kullanımı bir zorunluluk halindedir. Örneğin sadece ateşleme avansı ve oktan sayısı arasındaki ilişki irdelendiğinde; vuruntusuz çalışmaya yönelik olarak 97 oktan benzin kullanılması gerektiğini ifade eden bir üretici muhtemeldir ki motor yönetim sisteminde erkene alınmış ateşleme avansları kullanmaktadır.Erken ateşleme avansları kullanmayan bir başka üretici ise 95 oktan kullanımını tavsiye edecektir.

95 oktana müsade edilen bir motorda 97 oktan benzin kullanıldığında  motorun verimi düşecek, bir başka ifadeyle daha çok litre yakıt kullanarak aynı mesafe kat edilecektir. 97 oktan benzin kullanılması önerilen motorda 95 oktan benzin kullanılması durumunda ise  motorun vuruntulu çalışması söz konusu olabilecektir.

BMW  2013 model 3.16i modelinde; süper kurşunsuz 95 RON yakıt kullanılmasını önerirken,kurşunsuz RON 91 veya daha yüksek yakıt, maksimum etanol sınırı %10 (E10) olması şartına bağlanmıştır.

Öğretim Görevlisi

1977 Bursa'da doğumlu. İlk, Orta ve Lise eğitimini Bursa'da tamamladı. Uludağ Üniversitesi Mühendislik Fakültesi Elektronik Mühendisliği Bölümü Lisans mezunu. Aynı üniversitenin Makine Mühendisliği Otomotiv A.B.D.'ında yüksek lisans ve doktora derecelerini almıştır. Halen Uludağ Üniversitesi Mühendislik Fakültesi Otomotiv Mühendisliği Bölümü'nde öğretim üyesi olarak çalışma hayatına devam etmektedir.

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