When the moving metal parts grind against each other without a proper film of oil, they generate excessive heat. These formulations are specifically engineered to meet the high RPM stresses and tight tolerances of Stihl engines.
Stihl Oil Ratio Fuel Mixture Basics: Get the Mix Right
This heat causes the components to expand, increasing friction and leading to rapid wear. 6 ounces of oil.
6 oz oil per gallon Most modern Stihl chainsaws and trimmers 40:1 3. Understanding the Two-Cycle Engine To appreciate the importance of the mixture, you must understand the engine you are fueling.
Stihl Oil Ratio Fuel Mixture Basics: Get the Mix Right
Excess oil creates thick smoke, excessive carbon buildup on the spark plug, and a gummy residue inside the engine. The Dangers of an Incorrect Ratio Too Little Oil (Over-Lubrication) Pouring too much oil into the mix results in a ratio that is "too rich.
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