Amazon | Gulfstar Ultima XL 10W-40 Synthetic Diesel Engine Oil (5 L)

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Good quality heavy duty diesel engine oil is designed for long drain period . New generation diesel engines of heavy commercial, multi utility as well as passenger cars requiring highest quality engine oil. These oils are especially effective at sustaining engine durability where exhaust gas recirculation (EGR) and other exhaust emission componentry may be used. Optimum protection is provided for control of corrosive wear tendencies, low and high temperature stability, soot handling properties, piston deposit control, valve train wear, oxidative thi