SAE 30 or 10W30 full synthetic.
sae-30 non-detergent
5w30
sae30
the best would be to use 10w-30 synthetic oil all year long
SAE-30
ANSWER:?SAE30 oil above 40 degrees F (4 C) and below this temperature use 5W-30
Briggs and stratton engines use different oils depending on the temperature to which the engines will be used. Generally sae30 oil should be used for mower engines
it will hold about a half quart of oil
SAE 10w30 Full Synthetic.
SAE 30 weight full synthetic oil.
For a Briggs and Stratton motor 3.5 motor used straight gas and oil in the crank-case, there is no ratio.
there should never be oil in the carb. if there is then you have a problem. have you tipped the motor on its side on the carb side?