Alm 4 stroke lawnmower oil is a premium quality 4 stroke oil it is blended from the finest mineral oil additives which ensures the thermal stability anti wear engine cleanliness and corrosion protection properties demanded of a modern 4 stroke oil it is suitable for all 4 stroke lawnmowers and mobile 4 stroke petrol and diesel engines using sae30 meets the following performance standards api sf api cc blended and bottled in the uk