Hearing about 0w8 motor oil for the first time?

0W8 oil is a type of ultra-low viscosity engine oil, classified under the special grade of the SAE (Society of Automotive Engineers) J300 standard. Compared to the commonly used 0W-20, 0W-16, and 0W-8 grades, it has a lower viscosity and superior flow properties, making it the engine oil with the lowest viscosity grade currently available under the SAE standard.

The low-temperature pumpability of 0W8 engine oil is superior to that of 0W-16, enabling it to quickly enter the engine's fine oil passages at temperatures below -35°C, virtually eliminating the need for a warm-up period. It also meets the National VII emissions standards and extends the lifespan of the particulate filter (GPF) to 240,000 kilometer.
0W-8 motor oil is primarily used in vehicles with small displacement, naturally aspirated engines, hybrid systems, or those operating in low-temperature environments, such as Toyota hybrid vehicles, Nissan/Mitsubishi compact cars, and regions where temperatures drop below -30°C.
However, it is important to note that 0W-8 oil is not recommended for turbocharged vehicles or high-load/high-speed operating conditions, as its high-temperature, high-shear performance is inferior to that of 0W-16 or higher viscosity oils, which may lead to oil film breakdown.

The standard for 0W-8 oil is set by the Japanese Automobile Standards Organization (JASO), specifically JASO GLV-1, which requires wear resistance performance to be improved to FZG 10 grade. Currently, 0W-8 engine oil is primarily used in Japanese brands (such as Toyota, Nissan, and Mitsubishi), but its market share remains small, with 0W-20 or 5W-20 being the main options. If the vehicle manual recommends 0W-8 engine oil, it is advisable to choose products compliant with the JASO GLV-1 standard and replace them regularly, typically every 8,000 to 20,000 kilometer.

0W-8 oil is a next-generation lubrication technology specifically designed to achieve low emissions and high efficiency, particularly suited for the maintenance needs of Japanese hybrid and electric vehicles, balancing both performance and environmental goals. Its core advantages include ultra-low viscosity for optimized fuel economy, synthetic technology for long-lasting protection, and reliability backed by dual JASO/API standard certification.