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Prevent over-heating or freezing by using our coolant

Diesel Coolant HD-50

Diesel Coolant HD-50 is a premium quality, heavy-duty diesel premixed coolant.


It is a balanced blend of ethylene glycol and superior corrosion inhibitors that elevate the boiling point and prevent freezing of the coolant. It also protects against the effects of general corrosion, ensuring efficient engine coolant circulation.


Diesel Coolant HD-50 contains an effective heavy duty chemical inhibitor system which protects diesel engines from liner pitting, cavitation and hard water scale deposits. 



ASTM 6210, GM1899M and GM1825 performance specs, Cummins CES 14603, Caterpillar 1EO 535, MWN Diesel 234 2/15 and Nissan NES 5059 LLC, Ford ESE-M97B44-A and ESE-M97B18-C, SAAB FCD 8704 and Type P (Renault), Mazda MES MN 121D




Diesel Coolant HD-50 is for use in heavy duty diesel engines as well as in industrial plant systems requiring antifreeze – antiboil protection and corrosion protection where water quality is poor. Suitable for use in Cummins, Detroit Diesel, Kenworth, Freightliner, Caterpillar, John Deere, J.I.Case, Thermo King and Ford new Holland.

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Commercial fuels & lubricants offer

Our commercial fuels team can work with Castrol to provide a combined fuels and lubricants offer to commercial customers.