Always move the mower to a stable, outdoor area away from open flames or sparks before filling the tank. However, it is crucial to avoid fuels containing more than 10% ethanol, such as E15, as the higher alcohol content can be corrosive to the rubber and metal components within the engine.
Vintage Craftsman Lawn Mower Oil Tips and Maintenance
If you notice a decrease in performance, inspect the fuel filter and replace it if it is dirty or clogged. Old fuel can leave behind a varnish-like residue that clogs the carburetor and causes the engine to sputter, hesitate, or fail to start entirely.
Never store gasoline in the engine tank for long periods, as this is a common source of persistent starting issues. 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.
Understanding Vintage Craftsman Lawn Mower Oil Requirements
In fact, using fuel that is too high in octane can sometimes lead to inefficient combustion and carbon buildup over time. This separated ethanol-water mixture is highly damaging and should be avoided to prevent internal rust.
More About Craftsman lawn mower oil
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