Small Engines (Lawn Mowers, etc.): proper oil, briggs and stratton, mike briggs

Question
What is the proper oil for 4 cycle mower motors.  Will a straight 30 wt detergent oil be ok in Missouri summer weather ?

Answer
HI MIKE

BRIGGS AND STRATTON  SAE 30   OIL WILL BE OK
IT PROTECTS  FROM 5 DEGREES C ( 40 FARENHEIGHT)  TO  40 DEGREES C (TO JUST OVER 100 FARENHEIGHT )


BUT  IF YOUR EXPECTED TEMPRETURE  WAS TO GO LOWER THAN 5 DEGREES C (40 FARENHIEGHT)
YOU CAN USE 5W/30 OR 10W/30  OR EVEN SYNTHETIC 5W/30


CHECK  WWW.BRIGGSANDSTRATTON.COM   IT HAS ALOT OF USEFULL INFORMATION


CHEERS  PAUL