Can I use a 5W-40 engine oil if my owner's manual recommends 5W-30?

In many cases yes, but it is best to follow your vehicle manufacturer's specification. The 40 indicates a slightly thicker oil at operating temperature; check that the oil still meets the API/ACEA and OEM approvals listed in your manual, or contact our team for advice on your specific vehicle.

What is the difference between hydraulic HM and HV grade oils?

HM oils are anti-wear hydraulic oils for systems operating at relatively stable temperatures, while HV oils have a higher viscosity index, meaning they maintain more consistent viscosity across a wider temperature range, making them better suited to outdoor or variable-temperature applications.

Does Greyhound Lubricants supply both businesses and individuals?

Yes. We supply B2B customers such as fleets, workshops, mining, agriculture and industry directly from our Kempton Park head office, and B2C customers can buy online through our shop or in person at our depot and through Greyhound Auto Retail branches.

How can I order Greyhound Lubricants products?

You can shop the full range online at greyhoundlubricants.co.za for delivery, visit our Kempton Park depot for in-store purchases, or contact our sales team on 011 974 0797 or WhatsApp 063 695 8085 for bulk and trade orders.

Where is Greyhound Lubricants located?

Our head office and depot is at 10 Tungsten Street, Isando, Kempton Park, 1600, Gauteng, South Africa.

Are Greyhound Lubricants products quality-certified?

Yes. Our products are manufactured in Europe and at ISO-certified plants globally and are formulated to meet API, ACEA and OEM specifications.

Manual Transmission

Greyhound Lubricants supplies manual transmission oil for synchromesh gearboxes, transfer cases, differentials and final drives in cars, bakkies, trucks and off-highway equipment.

Two things decide the correct manual transmission oil: the API service category and the SAE viscosity grade. GL-4 oils carry a moderate extreme-pressure additive level and are specified for most synchromesh gearboxes, where excessive EP chemistry can corrode brass and bronze synchroniser rings. GL-5 oils carry a higher additive treat and are intended for hypoid differentials operating under shock load. Common grades include 75W-90 and 75W-140 full synthetics for extended drain and cold-start performance, and 80W-90 and 85W-140 mineral grades for conventional and heavy-duty axles. Limited-slip differentials need a fluid with the correct friction modifier.

Available in 1L, 5L, 20L and 210L packs nationwide.

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