The two-stroke engine with STIHL 2-MIX technology saves up to 20% of fuel and reduces emissions by up to 70% compared to STIHL 2-stroke engines of the same performance class. Our high performance two-cycle engine oil is a special blend that is specifically designed to meet the needs of today’s high performance two-stroke engines. For maximum performance and engine life expectancy, we also recommend using STIHL Ultra HP 2-cycle engine oil.