DESCRIPTION –
TOP DOG HDZ-50 20W-50 is a premium mineral diesel engine oil using high performing API and OEM approved additive technology suitable for American, European and Japanese diesel engines. This high viscosity formulation offers lower oil consumption and higher levels of wear protection for engines operating in the most severe applications or those with high mileage.
It can be used in a range of applications from stationary engines, heavy duty diesel engines including those used in earth moving and road transport applications as well as some petrol engine applications requiring API SL or earlier performance levels.
GB Fasteners will be closing its doors on 30 November 2026. We thank our customers, suppliers, and the wider community for their support over the years. Learn more