What is the fuel ratio for a stihl ms 290?

The fuel ratio for a Stihl MS 290 chainsaw is 50:1, which means you should mix 2.6 ounces of high-quality two-stroke engine oil with one gallon of unleaded fuel. It's important to use the recommended oil and fuel type for optimal performance and to ensure the longevity of the engine. Always refer to the user manual for specific guidelines and recommendations.