Penrite Small Engine Oil 10W 30 4-stroke 2.5LitreProtect and maintain your small engine with Penrite Small Engine 4 Stroke 10W 30. Penrite Small Engine 10W 30 is a semi synthetic, non friction modified engine oil formulated using modern technology additives to provide excellent protection against wear and corrosion while also maintaining engine cleanliness. Penrite Small Engine 4 Stroke 10W 30 is suitable for use in most small 4 stroke engines including water pumps, lawn mowers, generators and