The pride of supporting police motorcycles, Hayabusa Oil has been selected for the second consecutive year
The performance of a motorcycle is not determined by tires, brakes, or engine alone. Oil lubricates the inside of the engine and protects it from extreme heat and wear, playing a vital role in the invisible parts of the machine. Hayabusa Oil, a motorcycle engine oil developed by Yorost Co., Ltd. (Chuo-ku, Osaka City, CEO: Jiro Nagase), plays such an important role.
This oil, which was released in August 2023, was well-received by many riders immediately after its release, and in the following year, 2024, achieved the remarkable feat of being officially adopted by the Osaka Prefectural Police Headquarters Traffic Department Traffic Mobile Unit, i.e., the police motorcycles of the Osaka Prefectural Police. It has now been decided that it will continue to be adopted as the engine oil for the Osaka Prefectural Police’s police motorcycles in 2025 as well. The fact that it has once again been chosen for the police motorcycles that motorcycle specialists entrust their lives to every day is proof that Hayabusa Oil has continued to demonstrate its performance in harsh environments.
Performance that supports tough missions – safe even in midsummer cities
The Osaka Prefectural Police Traffic Mobile Unit performs missions that require high performance every day, both in urban areas and on the highway, from ensuring daily traffic safety to tracking violating vehicles and emergency operations. Under the scorching sun, paved roads can easily reach temperatures exceeding 60°C, and motorcycle engines, whether air-cooled or water-cooled, are constantly exposed to high temperatures. If the oil cannot withstand these conditions, it loses viscosity and the oil film breaks down, leading to fatal problems such as seizure and abnormal wear.
However, Hayabusa Oil boasts a viscosity index of over 170. It maintains light lubrication at low temperatures while maintaining a strong oil film even at high temperatures, supporting smooth engine movement at all speeds. Furthermore, unlike ester-based oils that have traditionally been considered the “highest quality,” Hayabusa Oil uses a next-generation synthetic base oil that combines mPAO (metalol PAO) and alkylnaphthalene. This overcomes the weakness of esters in terms of oxidation and deterioration, achieving higher heat resistance and durability. Hayabusa Oil’s strength lies in its ability to reliably protect the inside of an engine, even when police motorcycle officers drive hundreds of kilometers a day.
Durability proven by numbers – performance maintained even after 3000km
Another feature of Hayabusa Oil is its incredible viscosity retention. VI (viscosity index improver), which raises the viscosity index, usually causes the molecules to shear when repeatedly driven long distances at high temperatures, causing the oil to gradually soften. However, Hayabusa Oil uses carefully selected VI, which allows it to maintain over 97% of its viscosity even after 3,000 km of driving. This means that the shift feel remains unchanged for a long period of time, even on long midsummer tours or during the harsh duties of a police motorcycle. This not only means that the oil has a long life, but also gives you peace of mind knowing that you can always drive with the same operating feel.
This technology is put to the best use in professional situations, such as those of police motorcycle officers, who are required to operate with precision down to the second. The reason why Hayabusa Oil was chosen by the police, a public institution, for the second year in a row is because of the company’s philosophy of pursuing the importance of “remaining the same” rather than just seeking flashiness.
Corporate attitude and responsibility to stay close to the workplace
Yorost is a company headquartered in Osaka that primarily sells motorcycle and automobile related products and logistics supplies online. It does more than simply operate an online shopping site; it independently researches and develops products to meet user needs, and has the ability to bring them to market, as with Hayabusa Oil. This is why the company actively listens to the voices of police motorcycle officers and ordinary riders, carefully incorporating the performance requirements of the field into its products.
Supporting the activities of the Osaka Prefectural Police Traffic Mobile Unit, which is at the forefront of protecting the safety of the local community, is a source of pride for Yorost, but it also represents a great responsibility for product development. In fact, in an official statement, the company stated, “We will strive to further improve quality and develop products so that we can contribute to a safe and secure society.” This attitude of not just doing business, but fulfilling our responsibility to manufacture products together with the local community, was the foundation for the company to once again be chosen for police motorcycles.
Reliable driving even in the scorching heat of summer – Hayabusa Oil continues to evolve
What is required of an oil used in an environment like a police motorcycle, where engines are constantly rotated at high speeds, high temperatures, and are subjected to high loads, is stability that can consistently protect the engine under any circumstances. Hayabusa Oil has cleared these harsh conditions in the field for two years in a row. Osaka’s midsummer, where temperatures exceed 35°C, is the toughest season for motorcycles, and the fact that it has survived such a period leads to great trust.
Of course, this performance also provides great peace of mind for average riders. It gives you peace of mind not only on long-distance touring, but also in midsummer city traffic jams without worrying about overheating. Shifting and response are maintained for a long time, so the true enjoyment of riding a motorcycle is not diminished until the very end.
Yorost will continue to evolve its Hayabusa Oil and other products, striving to create a society where people can ride their motorcycles with peace of mind. Whether it’s extreme heat, cold, or your daily commute, Hayabusa Oil will continue to challenge the future of engine oil, supporting your riding in any situation.
