How do I check and change lawn mower oil?
Learn how to check & change the oil in your lawn mower small engine and also replace the oil filter with this step-by-step FAQ from Briggs & Stratton!
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Before you are able to change the lawn mower oil on your Briggs & Stratton® small engine, it is important to know the correct type and capacity required for your specific equipment and local climate.
The best oil for your lawn mower depends on your outside temperatures, but SAE 30 is the most common oil for small engines in warmer climates. Always choose a high-quality detergent oil classified as "For Service SF, SG, SH, SJ" or higher, and avoid special additives.
- SAE 30: Best for warmer temperatures (above 40°F).
- SAE 10W-30: Good for varying temperatures, but may increase oil consumption above 80°F.
- Synthetic SAE 5W-30: Provides the best protection at all temperatures, improved cold-weather starting, and less oil consumption.
- Vanguard 15W-50: Ideal for continuous commercial use and varying temperatures.
Purchase the right oil for your engine at shop.briggsandstratton.com.
Yes, you can use synthetic 5W30 or 15W50 oil in all temperature ranges for your lawn mower. We recommend Briggs & Stratton Synthetic Oil, which improves cold-weather starting and guarantees compliance with your warranty requirements. Note that using synthetic oil does not alter your required 50-hour oil change intervals.
Yes, you can use synthetic 5W30 or 15W50 oil in all temperature ranges for your lawn mower. We recommend Briggs & Stratton Synthetic Oil, which improves cold-weather starting and guarantees compliance with your warranty requirements. Note that using synthetic oil does not alter your required 50-hour oil change intervals.
To check your oil level, park the mower on a level surface, remove the dipstick, and wipe it clean with a rag. Reinsert the dipstick fully (making sure the cap teeth match the tube grooves), remove it again, and look at the bottom of the blade. The oil should sit between the "full" and "add" marks. If it is low, pour in a few ounces at a time to avoid overfilling.
For a quick walkthrough on how to check and change your oil, see our How to Do a Small Engine Oil Change video.