How to Change Small Engine Oil
For optimum performance, you should change the oil in your small engine after the first five hours of use and then annually, or every 50 hours of use...
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Briggs & Stratton Admin : Updated on January 15, 2026
Perform some simple seasonal storage and startup maintenance in the spring, fall or whenever you store your equipment for prolonged periods of time. Use our handy equipment storage checklist to help you store your equipment properly.
Equipment Storage Checklist
Fuel
Before you fill up, add an alcohol-free fuel stabilizer and ethanol treatment according to the package directions. After adding the treated fuel to the fuel tank, run your mower for a few minutes so the stabilized fuel circulates through the engine's fuel system.
Gas begins to degrade in as little as 30 days which can lead to your engine's fuel system clogging and your equipment not starting the following season. Using an alcohol-free fuel stabilizer and ethanol treatment eliminates the need to drain fuel prior to storage and ensures quick easy starts next season by preventing gum and varnish build-up within your engine's fuel system. Alcohol-free fuel stabilizer and ethanol treatment keeps fuel fresh for up to 24 months.
Oil
Battery
Cleaning Your Equipment
* Note: if you choose not to use the Briggs & Stratton Fuel Stabilizer, or if the engine is using fuel containing alcohol, such as gasohol, remove all fuel from the tank and run the engine until it stops from lack of fuel.
For optimum performance, you should change the oil in your small engine after the first five hours of use and then annually, or every 50 hours of use...
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