Higher octane fuels, such as premium gasoline with ratings of 91 or 93, are generally unnecessary and do not provide any performance benefit for small engines. Never refuel a hot engine, as the vapors can ignite on a hot muffler or exhaust port.
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Always move the mower to a stable, outdoor area away from open flames or sparks before filling the tank. Understanding Octane Ratings and Fuel Types At the heart of the discussion is the octane rating, which measures a fuel's ability to resist "knocking" or "pinging" caused by premature ignition in the engine.
Even with E10, moisture can separate from the ethanol blend over time, leading to phase separation at the bottom of the fuel tank. Safety and Storage Best Practices Safety should always accompany your fueling routine.
Craftsman Lawn Mower Oil Filter Selection and Maintenance Tips
Fuel begins to degrade and lose its volatility after just 30 days, especially when exposed to oxygen. For the vast majority of Craftsman lawn mowers, particularly those with standard aluminum engines, regular unleaded gasoline with an octane rating of 87 is the ideal specification.
More About Craftsman lawn mower oil
Looking at Craftsman lawn mower oil from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
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