Caltex Malaysia

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.

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.

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.

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.

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.

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.

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.

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

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.

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.

The introduction of RON95 is in line with the Malaysian government’s mandate to replace subsidized RON92 with subsidized RON95 products.

Caltex’s RON95 offering is Premium 95 with Techron® and is identified by yellow product ID decals and pump nozzles. In line with the new naming convention, Gold with Techron (RON97) has been renamed Premium 97 with Techron®, identified by red product ID decals and pump nozzles.

Caltex’s Premium 95 with Techron® is the only RON95 offering in the Malaysian market with the proven power-packed cleaning ingredient of Techron® - an exclusive and patented fuel system cleaning ingredient which is technologically advanced and specially formulated to clean up deposits on critical engine parts and keep them clean.

This switch is in line with the Malaysian Government’s directive to ensure consumers are able to visually distinguish between the RON grade fuels, and the product ID decals reflect the color of the respective fuels. For example, RON95 possesses a yellow hue, while RON97 bears a red product color.

Euro fuel standards or specifications are intended to manage fuel quality or parameters that are known to have the potential to impact adversely on the environment. Some of these parameters include density, sulphur, benzene, aromatics, distillation etc.

As the fuel standard progresses from 1 to 2 and eventually to an end game of 5, these parameters (though not all at the same time as it depends on national legislation) would gradually become tighter and more stringent.

In Malaysia’s implementation of EURO 2M, where “M” denotes “modified”, only certain parameters have been revised such as benzene, sulphur and Reid vapor pressure (“RVP”) for petrol; and Cetane number, distillation and sulphur for diesel. The most significant specification revision is the change of sulphur from 3,000 parts per million (ppm) to 500 ppm for diesel and 1000ppm to 500ppm for petrol.

Yes, most countries adopt the Euro fuel specifications as these are used as tools to combat the environmental effects of vehicles' emissions.