Most Briggs engines that small take 1 pint of oil .
how to Change oil on a Briggs and Stratton 6.75 HP
40 oz
48 oz
until the dipstick says full
Click the link and find your engine for the exact capacity.
No you do not put oil in the gas - 4 hp Briggs & Stratton motors are 4 stroke, not 2 stroke in which you do have to add oil to the gas.
18 ounces
48 oz oil capacity
48 ounces no oil filter or 52 ounces with an oil filter. Do not overfill!
1.25 Qts
64 oz per the manual.
18 to 20 onces