During the summer a 30 weight oil is all that is recommended. During winter operation a 10W-30 oil is reccomended.
How many oz. of oil does the above engine take?
Click the link and find your engine for the exact capacity.
SAE 30 weight in the summer or SAE 10w30 if you use the engine in cool temperatures.
sae-30
10w - 30
SAE-30
Champion CJ-8
Should take a Champion: RC12YC
48 ounces or 1.5 quarts.
Go to this link and it outlines all Briggs and Stratton engine types and spares including spark plugs. http://www.manddsmallengine.com/briggs/parts/ Most common plug used in B&S is a RJ19LM
check you tube under removing the govenor on a Briggs and stratton
SAE 30 SF or better rating
A Briggs & Stratton 6 HP Engine takes a little less than 1 quart of oil. When you get to about 3/4 poured in, Stop and check your oil. It may take a hair more but not a full quart.