When it comes to the rock oil capacity of a 21 hp Briggs and Stratton engine , it can vary depending on the specific model and design . However , most Briggs and Stratton engines in this horsepower range typically hold around 48 ounces or 1.5 dry quart of oil .

To mold the exact oil capacity for your specific engine , it is always best to refer to the possessor ’s manual of arms or the manufacturer ’s specifications . This will furnish you with the most accurate information for your particular engine model .

When it come to prefer the veracious type of crude oil for your Briggs and Stratton locomotive engine , it is important to weigh the manufacturing business ’s recommendations . mostly , Briggs and Stratton engine perform well with a eminent - quality detergent oil , such as SAE 30 or 10W-30 .

SAE 30 oil is normally used in warm temperatures , while 10W-30 oil is suitable for a broader chain of mountains of temperature , make it more versatile . It is important to note that if you are lock your locomotive engine in passing insensate conditions , you may need to consider using a lower viscousness oil , such as 5W-30 , to insure proper lubrication during start - up .

In terms of oil change intervals , it is recommend to change the petroleum in your Briggs and Stratton engine every 50 hours of cognitive operation or once per time of year , whichever come first . Regular oil changes are crucial for assert the functioning and longevity of your locomotive .

When performing an oil change , it is important to watch proper routine . Here is a step - by - measure template to assist you through the unconscious process :

1 . get down by track down the locomotive for a few minutes to warm up up the crude . This will help to ensure that the oil flow freely and carries forth any contaminants .

2 . reverse off the engine and disconnect the spark plug telegram to prevent inadvertent start .

3 . localise a drain cooking pan or container underneath the oil drain hype , which is located on the bottom of the engine .

4 . Unscrew the oil drain plug using a suited twist or socket . countenance the vegetable oil to in full drain into the goat god .

5 . Once the fossil oil has run out completely , replace the drain plug and tighten it securely .

6 . Locate the oil fill cap or dipstick , which is usually settle near the top of the engine . Remove the cap or dipstick to get to the oil fill opening .

7 . Slowly pour the recommended amount of crude oil into the engine . It is always a good idea to use a funnel to invalidate spills and ensure accurate filling .

8 . After adding the oil , check the oil level using the dipstick . It should be within the recommended range indicate on the dipstick or in the owner ’s manual .

9 . If the oil level is broken , contribute more oil as needed . It is of import not to overfill the engine , as this can stimulate damage .

10 . Once the oil color level is correct , supervene upon the oil colour fill roof or dipstick and ensure it is tightened firmly .

11 . reconnect the flicker chew wire and start the engine . appropriate it to run for a few minutes to propagate the new crude throughout the engine .

By adopt these steps and stick to the maker ’s passport , you may ensure that your 21 hp Briggs and Stratton engine is properly lubricated and ready to perform at its best . Regular oil changes and proper sustainment are cardinal to go along your engine running smoothly for class to come .

Caroline Bates