10W-30 CJ-4 Oil for Universal ProductsStens Shield SAE 10W 30 CJ 4 Engine Oil Case of Four 1 Gallon Bottles This Stens Shield 10W 30 CJ 4 engine oil is a high quality, multi grade synthetic blend formulated for diesel and gasoline engines in agricultural, lawn and garden, and outdoor power equipment. Sold as a case of four 1 gallon bottles (4 gallons total), it is designed for severe duty applications and provides outstanding protection across a broad operating temperature range.