Mineral based formula. Ideal for use in older high mileage 4 stroke petrol cars and vans or lawn mowers where a 20/50 oil product is specified. Traditional multi grade oil, designed for older and higher mileage cars and is suitable for both petrol and non turbocharged diesel engines. Contains calcium long chain alkaryl sulphonate. May produce an allergic reaction. Specifications SAE 20W 50. Keep out of reach of children. Always read instructions. Wilko 1L 20W50 High Mineral Motor Oil