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Browse a selection from Rock Oil’s vast range. We’re regularly adding and updating items on our product set, but if you can’t immediately find what you’re looking for, contact us for expert advice, or use our lubricant selector to find the right oil for your vehicle.

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Multi Industry • Diesel Generator Oil, Heavy Duty Diesel Engine Oils

GENERATOR-GUARD™ 15W-40

A high quality heavy duty engine oil engineered to have a comprehensive performance profile allowing fulfilment of a wide range of major engine builder lubrication requirements.

Multi Industry • Diesel Generator Oil

GENERATOR-GUARD™ 20W-50

High performance engine oil that provides advanced protection of stationary engines. GENERATOR-GUARD 20W-50 is for severe service applications where diesel fuels are in use. GENERATOR-GUARD 20W-50 is recommended for use...