Key Facts
• Mazda held a biodiesel fuel briefing on August 22, 2025, in Tokyo.
• 90 participants from government agencies and companies attended the event.
• The fuel is made from used cooking oil and compatible with existing vehicles.
• Plants used for the oil absorb CO2, making emissions effectively net-zero.
• Current biodiesel costs are three times higher than diesel in Japan.
• Mazda Executive Takeji Kojima emphasized the need for shared decarbonization goals.
• Simplified refueling tanks for businesses were introduced at the event.
• A test drive showcased no difference in vehicle performance with the new fuel.
Summary
Mazda hosted a briefing in Tokyo to promote next-generation biodiesel fuel, which is derived from used cooking oil and compatible with existing vehicles and infrastructure. The event, attended by 90 representatives from government and private sectors, highlighted the fuel’s potential to achieve net-zero emissions due to CO2 absorption by the plants used in production. However, the fuel’s cost, currently three times that of diesel, remains a challenge. Mazda Executive Takeji Kojima stressed the importance of collaboration among supply and demand stakeholders to build a new fuel supply network and achieve decarbonization goals. The event also featured simplified refueling tanks for businesses and a test drive demonstrating unchanged vehicle performance with the biodiesel.
