
Gear Oil Built Around Viscosity, Load & Application
Explore Shengxiang Ordinary and GL-5 gear-oil families by SAE viscosity grade, application type and commercial service positioning.
Start with the right series
Use the overview as a selection aid.
Ordinary Series
Reliable everyday gear-oil options for compatible routine driveline applications.
GL-5 Series
Premium heavy-load gear-oil range with four variants.
Ordinary vs. GL-5
A concise commercial comparison based on the current product page.
Three checks before you order
A professional lubricant selection should start with the equipment requirement.
Confirm performance level
Check the OEM manual/TDS requirement first.
Match SAE viscosity
Choose the viscosity grade specified or permitted.
Set service interval by OEM
Actual drain interval depends on OEM instructions and duty cycle.
Where gear oils work
Final suitability depends on the exact OEM specification.
Need a product recommendation or quotation?
Send equipment model, required specification, viscosity, quantity, packaging and destination.
Ordinary Series Product Categories
Two viscosity options with 100,000 km commercial service positioning.*
Balanced viscosity choice for compatible manual transmissions, gearboxes and axle applications.
Higher-viscosity choice for compatible applications requiring SAE 85W-140.
Understand the viscosity choice
Both grades carry the 85W winter designation.
85W-90 vs 85W-140
Qualitative relative comparison—not a laboratory viscosity chart.
Visual scale is illustrative only.
Typical driveline locations
Suitability depends on the specified performance level.
Conceptual viscosity-temperature view
Viscosity decreases as temperature rises.
What to confirm before filling
Ordinary Series specification overview
Summary of currently available page information.
| Item | 85W-90 | 85W-140 |
|---|---|---|
| Series | Ordinary | Ordinary |
| SAE viscosity grade | 85W-90 | 85W-140 |
| Performance level | Confirm product TDS / OEM requirement | Confirm product TDS / OEM requirement |
| Commercial service position* | 100,000 km | 100,000 km |
| Typical selection | Compatible routine driveline where 85W-90 is specified | Compatible routine driveline where 85W-140 is specified |
Laboratory values will be published only from an approved Ordinary-series report
No Ordinary-series lab report was supplied, so values are not copied or invented.
Ordinary Series — Selection Guidance
Choose the lubricant from the equipment requirement first.
Need an Ordinary Series quotation?
Send viscosity, quantity, packaging and destination.
GL-5 Series Product Categories
Four premium product options covering 85W-90 and 85W-140.
Premium 85W-90 option for compatible differentials, final drives and gear systems.
High-viscosity GL-5 option positioned for demanding heavy-load driveline service.
White variant of 85W-90 with premium GL-5 positioning.
White 85W-140 variant for customers requiring the higher viscosity grade.
Performance, viscosity & application
API GL-5 and SAE viscosity grade describe different aspects.
High-load axle gear service
API GL-5 is intended for demanding axle gear service, particularly hypoid gears.
LSD friction requirements are normally defined separately by the axle manufacturer.
85W-90 vs 85W-140
Both share the 85W winter designation.
Illustrative relative scale only.
Where GL-5 is commonly considered
The OEM remains the final authority.
Conceptual viscosity-temperature view
Qualitative relationship only.
GL-5 Series specification overview
Commercial page summary; add verified TDS values when available.
| Item | 85W-90 | 85W-140 | 85W-90 White | 85W-140 White |
|---|---|---|---|---|
| Series | GL-5 | GL-5 | GL-5 | GL-5 |
| SAE viscosity grade | 85W-90 | 85W-140 | 85W-90 | 85W-140 |
| Performance positioning | API GL-5 series | API GL-5 series | API GL-5 series | API GL-5 series |
| Commercial service position* | 100,000 km | 150,000 km | 150,000 km | 150,000 km |
| Variant | Standard | Standard | White | White |
| Typical selection | GL-5 + 85W-90 specified | GL-5 + 85W-140 specified | White variant | White variant |
GL-5 80W-90 measured results
Source: product inspection report. Applies to GL-5 80W-90 only.
Measured viscosity drop with temperature
Two measured points; not a full viscosity-temperature curve.
Quality-control results
Report judgement: qualified.
| Test item | Quality requirement | Measured result | Method |
|---|---|---|---|
| Appearance | Clear / transparent | Clear / transparent | Visual |
| Kinematic viscosity @ 100°C | 13.5–18.5 mm²/s | 16.30 mm²/s | GB/T 265 |
| Kinematic viscosity @ 40°C | — | 152.3 mm²/s | GB/T 265 |
| Viscosity index | — | 113 | GB/T 2541 |
| Pour point | ≤ −30°C | −38°C | GB/T 3535 |
| Water, volume fraction | 0.03% | None detected | GB/T 260 |
| Mechanical impurities, mass fraction | 0.02% | None detected | GB/T 511 |
| Flash point, open cup | ≥ 180°C | 215°C | GB/T 3536 |
| Copper strip corrosion, 100°C × 3 h | ≤ 1 | 1 | GB/T 5096 |
| Liquid-phase rust test, Method B | No rust | No rust | GB/T 11143 |
| Foam, 24°C | ≤ 20/0 mL/mL | 0/0 | GB/T 12579 |
| Foam, 93.5°C | ≤ 50/0 mL/mL | 0/0 | |
| Foam, after 24°C | ≤ 20/0 mL/mL | 0/0 | |
| Report judgement | — | QUALIFIED | — |
GL-5 Series — Selection Guidance
Use GL-5 only where the OEM permits the performance level and selected SAE grade.
Need a GL-5 Series quotation?
Send viscosity, variant, quantity, packaging and destination.
