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Mobilube HD 80W-90 (GL-5) — Heavy-Duty Gear Lubricant

Mobilube HD 80W-90 (GL-5) — Heavy-Duty Gear Lubricant

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Mobilube™ HD Series — Heavy-Duty Axle & Gear Lubricant

Mobilube™ HD 80W-90

Heavy-Duty GL-5 Gear Lubricant | SAE 80W-90 | Hypoid Axles & Final Drives

SAE 80W-90 API GL-5 MIL-PRF-2105E ZF TE-ML Approved Meritor & Dana Approved 20L & 208L In Stock

80W-90

SAE Grade

GL-5

API Rating

105

Viscosity Index

-30°C

Pour Point

Product Overview

Mobilube™ HD 80W-90 is a high-performance heavy-duty gear lubricant formulated from high-performance base oils and an advanced additive system — engineered for heavy-duty axles, final drives and manual transmissions where extreme pressures and shock loading are expected. Recommended for applications requiring API GL-5 service, it delivers excellent chemical and thermal stability at elevated operating temperatures, good low-temperature performance and outstanding rust and corrosion protection in wet and water-contaminated conditions.

The reliable, cost-effective mineral gear oil choice for South African fleet, mining, construction and agricultural operations. Approved by ZF (TE-ML 05A, 07A, 12E, 16F, 19B, 21A), Meritor, Dana Spicer and Mack. Meets MIL-PRF-2105E. Available in 20L and 208L drum from Orbit Industrial — Genuine Mobil Lubricants Distributor, South Africa.

80W-90 vs 85W-140 — When to Specify Each Grade

Always confirm grade from your OEM handbook — contact Orbit Industrial for application-specific grade selection assistance

Specify 80W-90 when:

· OEM specifies SAE 80W-90 grade

· General on-highway and off-highway API GL-5 applications

· Mixed temperature range operations

· Lighter vehicle axles and final drives

· Standard fleet and agricultural equipment maintenance

Specify 85W-140 when:

· OEM specifies SAE 85W-140 or 90 grade

· Heavy towing or drawbar applications

· Fully loaded haul trucks in high ambient temperatures

· High-torque low-speed applications requiring maximum film thickness

· Axles running consistently hot under sustained high load

Also available: Mobilube HD 85W-140 →

Performance Benefits

Excellent Chemical & Thermal Stability

Maintains oil integrity at elevated bulk oil temperatures encountered in heavily loaded axles and final drives — resisting oxidation, deposit formation and viscosity increase under sustained high-load and high-temperature operating conditions.

Outstanding EP Protection

Advanced EP additive system protects hypoid gear teeth under the three critical loading conditions — high-speed/shock load, high-speed/low-torque and low-speed/high-torque — that cause premature gear wear and failure in under-specified gear lubricants.

Good Low-Temperature Performance

Pour point of -30°C provides adequate cold-start performance for South African climate conditions — ensuring oil circulation to axle and drivetrain components on cold morning starts across the Western Cape, Northern Cape and high-altitude mining sites.

Outstanding Rust & Corrosion Protection

Demonstrated excellent rust protection in water-contaminated and wet operating conditions — protecting axle and final drive components from corrosive wear in wet haul road environments, high humidity coastal mining sites and agricultural operations.

Cost-Effective Mineral Performance

Delivers reliable API GL-5 performance at a mineral oil price point — the right specification for fleet operations, mining haul truck axles and agricultural equipment where operating conditions do not require the additional cost of fully synthetic gear oil.

Broad OEM Coverage

Meets API GL-5 — accepted across the widest range of heavy-duty truck, commercial vehicle and off-highway equipment OEM specifications requiring API GL-5 axle and final drive gear lubricant. One product covering a broad mixed fleet requirement.

Recommended Applications

Heavy-Duty Truck Axles

Hypoid rear axles on on-highway light and heavy-duty trucks, buses and commercial vehicles from all major OEM brands requiring API GL-5 gear lubricant specification.

Mining Haul Truck Axles

Final drives and axles on Cat, Komatsu, Bell and Liebherr haul trucks in open pit mining operations across the Northern Cape where API GL-5 mineral gear oil meets OEM requirements.

Construction Equipment

Axles and final drives on ADTs, graders, wheel loaders, excavators and compactors in construction and civil engineering applications across the Western Cape.

Agricultural Equipment

Tractor axles and final drives, combine harvester drives and other agricultural equipment across the Western Cape and Northern Cape farming regions where API GL-5 mineral gear oil is specified.

Industrial Hypoid Gears

Heavy-duty industrial and automotive applications involving hypoid gears under high-speed/shock load, high-speed/low-torque and low-speed/high-torque conditions.

Initial Fill, Top-Off & Refill

Suitable for initial fill, topping-off and refilling of enclosed commercial drive axles and final drives — across mixed fleet operations and mining site maintenance programmes.

Note: Mobilube HD 80W-90 is not recommended for applications requiring API GL-4 level performance, and is not intended for transmissions requiring engine oil or automatic transmission fluid.

Industry Specifications & OEM Approvals

API GL-5

Primary specification — covers all heavy-duty hypoid axle and final drive applications requiring GL-5 performance level

MIL-PRF-2105E

US Military specification — confirms performance at the highest GL-5 requirement level

ZF TE-ML 05A · 07A · 12E · 16F · 19B · 21A

Direct ZF approval — covers the full range of ZF axle and transmission applications

Mack GO-G Plus

Mack Trucks axle and drivetrain gear lubricant specification

Meritor 0-76-D · 0-76-N

Direct Meritor (ArvinMeritor) approval — widely fitted axles on South African heavy truck and bus fleets

Dana Spicer SHAES-256 Rev E

Direct Dana Spicer approval — Dana axles widely fitted on ADTs and construction equipment

Technical Properties

Property Test Method Value
SAE Grade — 80W-90
Kinematic Viscosity @ 100°C ASTM D445 14.5 mm²/s
Kinematic Viscosity @ 40°C ASTM D445 136 mm²/s
Viscosity Index ASTM D2270 105
Pour Point ASTM D97 -30°C
Flash Point (COC) ASTM D92 202°C
Density @ 15°C ASTM D4052 0.90 kg/l

Typical properties — not guaranteed specifications. Source: ExxonMobil Product Data Sheet.

Pack Sizes & Procurement

In Stock — Western Cape & Northern Cape

20 Litre

Workshop supply & small fleet

208 Litre Drum

Fleet depots & mining site supply

Also available: Mobilube HD 85W-140 for high-load towing, haul truck and heavy agricultural applications requiring the heavier grade.

Technical Documentation

PDF

Mobilube™ HD 80W-90 — Technical Datasheet

ExxonMobil Product Data Sheet · Distributed by Orbit Industrial

For Safety Data Sheet (SDS) visit exxonmobil.com/en/sds/sdssearch → · Contact Orbit Industrial for application confirmation and technical support.

Orbit Industrial Supplies is a Genuine Mobil Lubricants Distributor supplying Mobil lubricants to mining, marine, fleet and industrial operations across South Africa. Full gear oil range → · Mining supply →

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