from briggs website notice the part about using detergent oil.
Lawn mower oil type recommendations
Different oil types can work best at certain temperatures. Learn which one to choose for your climate.
- SAE 30- Warmer temperatures, most common oil for small engines.
- SAE 10W-30- Varying temperature range, this grade of oil improves cold-weather starting, but may increase oil consumption.
- Synthetic SAE 5W-30- Best protection at all temperatures as well as improved starting with less oil consumption.
- SAE 5W-30- Very cold temperatures.
- Vanguard 15W-50- Varying temperature range. For continuous-use, such as commercial lawn cutting or pressure washing.
When choosing lawn mower oil, use a high-quality detergent oil classified as "For Service SF, SG, SH, SJ" or higher. Do not use special additives.
Synthetic oils are an acceptable oil at all temperatures. The use of synthetic oil does not alter required oil change intervals.
Purchase the right oil for your engine at
shop.briggsandstratton.com.
*Below 40°F (4°C) the use of SAE 30 will result in hard starting.
**Above 80°F (27°C) the use of 10W30 may cause increased oil consumption. Check oil level more frequently.