In compliance with regulatory changes made by the Government, the said fuel product was developed in essence to continue improving emissions for better air quality.

After 1st June 2026, the black diesel nozzle at Caltex petrol stations in Peninsular Malaysia will change from B10 to B12 or B15. 

All blue nozzles at Caltex stations will continue supplying B7.

Both black and blue diesel nozzles supply blends of palm biodiesel and Euro 5 grade petroleum diesel at different blending ratios.

With Caltex Diesel™ with Techron® D (Euro5) products, the Euro5 indicates the commercially available fuel that supports the corresponding Euro 5 emission standard.

BX diesel is a blend of palm biodiesel with petroleum diesel, X represents the percentage of biodiesel in the diesel fuel. (Refer table below)

The term B7 depicts the content of biodiesel in a petroleum diesel, in particular palm-based biodiesel, which is of 7vol% palm biodiesel blend. B12 and B15 biodiesel would then mean 12vol% and 15vol% palm biodiesel blend respectively.

In Malaysia, biodiesel is produced from palm oil through chemical processes such as transesterification while petroleum diesel is a specific fraction obtained from the refining of crude petroleum oil. As such, biodiesel is a renewable fuel and petroleum diesel is a finite and fast depleting fuel.

Yes. Sustainable fuel refers to the production and utilisation of fuel in a sustainable manner meeting the environmental, social and economic challenges.

Yes, these different types of biodiesel can be used interchangeably. However, it is highly advisable for motorists to follow recommendations set forth by respective Original Equipment Manufacturer (OEM).

Most diesel vehicles can run on B12 or B15 blends, as long as the biodiesel blend is
produced by a reputable supplier, such as Caltex and meets the Malaysian fuel standards. However, it is highly recommended that you consult your vehicle owner’s manual for specific information regarding which type of fuel your vehicle can take. You may also consult your car dealer or manufacturer for additional information.

Caltex’s latest product contains up to 12% – 15% renewable content, depending on whether it is the B12 or B15 blend. Using Caltex Diesel™ with Techron® D (Euro 5) B12 or B15 instead of conventional diesel helps reduce emissions and improve air quality, while its diversified energy composition supports lower reliance on imported fuels. This stronger integration of renewable content contributes to a more sustainable energy mix and plays a key role in conserving natural resources for future generations.

There is generally no need for any engine improvements or modifications. It is best to refer to the Original Equipment Manufacturer (OEM) for recommendations.

The product may be loaded into a vehicle’s fuel storage tank without draining the remaining diesel in it. But it is strongly advised that you use only Caltex Diesel™ with Techron® D (Euro 5) to fully benefit from its cleaning and high-performance capabilities for your engine.

Generally, Euro 5 Diesel products will not make significant changes to existing vehicles with black smoke problems. For well-maintained engines, replacing the current grade of diesel with Caltex Diesel™ with Techron® D (Euro 5) will help to further improve our air quality. The said Caltex diesel fuel will make exhaust after-treatment devices more effective. When the device is installed on an engine, we can expect lower emissions and fewer particulates compared to older vehicles. The best way to keep smoke levels down is to operate a well maintained engine and not overload it.

Depending on your vehicle make and model, a Euro 5 compliant engine vehicle will have a much more significant reduction in emissions, as compared to older vehicles.

As Malaysia operates in a ‘managed float’ system, the pump prices are determined by the Government each week.

Caltex Diesel™ with Techron® D (Euro 5) contains Techron®, a proprietary, advanced technology, and multifunctional additive system that maintains fuel injector cleanliness and protects fuel system components to help ensure that engines operate at optimal efficiency and performance. It also consists of a lubricity agent to minimize wear on fuel injections and fuel pump components. As sulphur is damaging to the engine, the lower sulphur content in Euro 5 diesel also helps to reduce both the particulates and sulphur dioxide emissions of diesel engines.

Drivers can mix the said Caltex diesel product with the existing diesel during the initial phasing in of Euro 5 diesel. But once the vehicle is on the run with
Caltex Diesel™ with Techron® D (Euro 5), it is advisable not to mix other Diesel products of different standards and brands as it might reduce the effectiveness of exhaust after-treatment devices sooner than later.

For queries on biodiesel fuels, please visit Malaysian Palm Oil Board (MPOB) website or call them at 603-8769 4400. Alternatively, you may contact Ministry of Plantation Industries and Commodities (KPPK) at 603-8887 8353. On the other hand, queries regarding Euro 5 fuel specification, can be directed to the Department of Environment (DOE) at 603-8871 2000.