What is the correct gas/oil ratio for STIHL products?
A. When using STIHL branded Two Cycle Mix Oil, a 50:1 ratio (1 gallon of gasoline to 2.6 oz of STIHL 2 Cycle Oil). STIHL has Two Cycle Oil in easy to use bottles that are pre-measured for easy mixing with regular grade gasoline that has a minimum rating of 89 octane. Refer to your owner manual. See your dealer for STIHL Two Cycle Oil and for more information on your particular product.