GROUNDSMAN 4 STROKE ENGINE OIL IS A SUPERIOR QUALITY LUBRICANT PRODUCED SPECIFICALLY FOR ALL HORTICULTURAL 4 STROKE PETROL ENGINES INCLUDING LAWN MOWERS.  GROUNDSMAN 4 STROKE IS SUITABLE FOR ALL MAKERS OF 4 STROKE PETROL ENGINES AND BENEFITS FROM TECHNICALLY ADVANCED ANTI-WEAR ADDITIVES TO PROLONG ENGINE LIFE AND REDUCE CARBON BUILD UP.  GROUNDSAN 4 STROKE IS ALSO APPROVED TO ALL MANUFACTURERS SPECIFICATIONS AND CAN BE USED WHERE A 10W30 OR 10W40 OIL IS SPECIFIED.