Briggs And Stratton 21 Hp Oil Capacity

Can you use synthetic lawn mower oil?

Yes! We have modified our engine oil recommendations to state that you may now use a synthetic 5W30 (100074WEB) or 10W30 oil in all temperature ranges. We recommend the use of Briggs & Stratton Synthetic Oil. The use of this high-quality detergent oil assures compliance with Briggs & Stratton warranty requirements regarding the use of appropriate oil.

Engine break-in procedures using synthetic oil remain the same. Keep in mind that the use of synthetic oil does not prevent you from performing your regularly scheduled lawn mower maintenance (i.e. check oil, change oil, etc.).

How Much Oil Does a 22 Horse Briggs & Stratton Hold?

On this lawn mower engine, you can find two Briggs and Stratton oil capacities. These vary slightly based on mower engines having an oil filter or not.

  • Oil Capacity 60 fl. oz. (1.8 L) w/o filter
  • Oil Capacity 64 fl. oz. (1.9 L) the engine is equipped with oil filter
  • If you have a Briggs & Stratton 40H700 Series Engine, then note, two bottles are required to meet your engine oil capacity. It is also a recommendation to use 100% Synthetic Briggs, Stratton SAE 5W-30. 18 oz. for the Classic.

    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


    How much oil does a 21 HP Briggs and Stratton hold?

    Oil Capacity 48 fl.

    What is the oil capacity of a Briggs and Stratton engine?

    Use Briggs & Stratton SAE 30W Oil above 40°F (4°C) for all of our engines. Check oil level regularly. Air-cooled engines burn about an ounce of oil per cylinder, per hour. Fill to mark on dipstick.

    How much oil does Briggs and Stratton 20 HP take?

    Oil capacity is typically 48oz or 64 oz*. Change engine oil every 100 hours or annually, which ever comes first.

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