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Gear Oil Range

Multi-Grade Lubricants

Here follows Petromark’s range of multi-grade automotive gear oils and lubricants


Gear Oil GS 75W90 is a fully synthetic oil developed by our technical team to meet the various international OEM specifications.

Gear oil GS 75W 90 delivers unsurpassed performance for high and low temperature applications which are the cause of thermal degradation and oxidation.


Petromark’s Gear Oil GL4 80W90 is blended using high quality mineral base oil and a specially selected additive package.

This ensures good anti-wear characteristics, oxidation stability and anti-corrosion properties.


Petromark Gear Oil GS 80W140 is a fully synthetic high viscosity, multipurpose axle fluid oil for use in differentials, final drives and other applications where API GL-5 is required. Manufactured from high quality PAO synthetic base oil, this lubricant contains extreme pressure additives, as well as rust, oxidation and corrosion inhibitors to protect gears and bearings operated under a wide variety of load conditions.

This multipurpose gear oil for use in most passenger car, light and heavy duty truck conventional differentials, final drives, non-synchronized manual transmissions and out performs all conventional mineral 85W-140 hypoid gear lubricants.


Petromark’s Gear Oil GL 5 EP 85W-140 is formulated using high quality virgin base oils incorporating anti-oxidation, anti-foam, anti-corrosion and sulphur phosphorous extreme pressure additives to comply with international specifications.

Gear oil GL 5 EP 85W140 may be used in a wide range of automotive and earthmoving gearboxes and differentials where the vehicle manufacturer recommends a GL5 grade.

Transmission Lubricants

Here follows Petromark’s range of Transmission Lubricants


Petromark’s Transfluid TO-4 is a range of mono-grade oils developed as a transmission and drive train oil (TDTO) meeting Caterpillar TO-4 requirements. The additive package used to produce these products ensures excellent friction control, reduces gear wear, minimal brake noise, oxidation stability and excellent brake and transmission life.


Petromark’s Multipurpose Tractor Oil is a STOU (Super Tractor Oil Universal) product. It is a shear stable Multigrade oil, formulated from High Viscosity base oils with a Viscosity Index Improver, plus a high performance detergent / dispersant additive. It also contains a highly effective “anti-squawk” agent. . This additive treatment results in an extremely high strength film together with detergent / dispersant features that give a high level of protection against low temperature sludge formation and ring sticking.


Petromark’s Tractor Transmission 80W is a UTTO (Universal Tractor Transmission Oil) formulated using high quality Virgin Base Oils incorporating anti-oxidation, anti-foam, anti-corrosion sulphur phosphorous extreme pressure additives and has excellent anti-squawk characteristics.

ATF Automatic Transmission Fluids

Here follows Petromark’s range of Automatic Transmission Fluid gear oils and lubricants


Petromark Automatic Transmission Fluid is blended using a high viscosity index paraffinic base oil.

Blended to a Dexron Type II fluid this product includes, viscosity index improvers, anti-wear additives, dispersants, anti-oxidants and seal swell agents. This fluid is red in colour preventing any error when filling or top-up of transmissions.


Petromark Automatic Transmission Fluid DX3 has been produced using high viscosity index group III base oil.

This product includes viscosity index improvers, anti-wear additives, dispersants, anti-oxidants and seal swell agents. This fluid is red in colour preventing any error when filling or top-up of transmissions.


Petromark ATF DX6 is an advanced high performance automatic transmission fluid which has been formulated using superior grade synthetic base oils and market leading additive package.

ATF DX VI provides a high level of wear protection, cleanliness and extended drain intervals.