Shindaiwa Red Armor engine oil begins removing performance-robbing carbon deposits with the first use. The right fuel mix oil can make the difference between a top performing, reliable engine and a high-maintenance, low powered engine. Shindaiwa Red Armor engine oil incorporates powerful detergents that quickly remove existing carbon deposits, without sacrificing lubrication or film strength, and protects against future buildups. This powerful new oil is recommended for use in all air-cooled 2-stroke and 2/4-stroke (hybrid) engines. The oil is JASO FD and ISO L-EGD rated.