CASTROL RX SUPER HEAVY DUTY 15W-40 DIESEL ENGINE OIL 20LPart No. 3418280 Type ENGINE OIL Brand CASTROL Unit of Measure EACH Description Castrol RX Super Heavy Duty 15W 40 Diesel Engine Oil 20L Warranty No Warranty Type Semi Synthetic Item Type Oil (Engine) Viscosity 15W 40 Litres 20ltr API specification CJ 4 SAE viscosity class 15W 40 Features Specially engineered DuraShield boosters delivers 40% better wear protection Industry tested to provide protection to your engine DuraShield boosters helps to