Stirlings 4T Marine 10W-40. A four stroke engine oil for outboard application, formulated with carefully selected high quality base oils and special four stroke additives to achieve the following properties:
- a perfect lubrication of all motor parts
 - a very active detergency, resulting in a cleaner motorcompartment
 - good cold start properties
 - a very strong activity against wear, oxidation and corrosion
 - excellent shear stability