Product Specifications: 4L | Executive Standard: GB-11121-2006 | Product Performance: Viscosity Grades: 5W-30, 10W-40 ● Formulated with high-quality hydro-processed base oils and imported composite additives. ● Excellent low-temperature starting performance, reducing wear during cold engine starts. ● Exceptional oil film durability and shear stability ensure effective high-temperature lubrication; ideal for engines operating continuously under high-load conditions. ● Extended oil change intervals effectively reduce operating costs; high viscosity index and mechanical shear stability provide ultimate engine protection under harsh driving conditions (both high and low temperatures). Recommended Applications: ● Specially suited for Chinese road conditions and various harsh driving environments, such as heavy city traffic with frequent stop-and-go driving. ● Suitable for premium vehicles such as Audi, Buick, Passat, and Toyota Crown. Technical Specifications: ● Meets API SL/CF specification requirements.