Group III
Base Oil Group III 8 cSt
Heavy Group III base oil, the 8 cSt class, for engine oils and gear oils.
What is Base Oil Group III 8 cSt?
Group III 8 cSt base oil is the heavy viscosity class supplied by Synergysol Trading. The name is the kinematic viscosity class at 100°C. Blenders use it in heavier engine oils, gear oils, and industrial lubricants that need a viscosity index of 120 or higher at this body.
Group I base oil SN-500 is published at 9.5–11.2 cSt at 100°C with viscosity index 89. Group II N500 is the Group II heavy neutral. Group III 8 cSt is the high-viscosity-index choice. Bright stock BS-150 is 476.2 mm²/s at 40°C.
Applications
Synergysol Trading supplies Group III 8 cSt base oil for heavier engine oils, gear oils, and industrial lubricants.
Heavier engine oils. Passenger-car and diesel formulas use 8 cSt Group III when the heavy component has to carry a viscosity index of 120 or higher.
Gear and transmission oils. Gear oils that specify Group III in the heavy class name 8 cSt.
Industrial lubricants. Industrial oils written on an 8 cSt Group III base oil are blended from this grade.
Blends with 4 cSt or 6 cSt. The heavy class is combined with a lighter Group III class to hit the finished viscosity.
Specification
Appearance — Visual — Bright & Clear
Kinematic viscosity at 40°C — ASTM D445 — 41.10 — cSt
Kinematic viscosity at 100°C — ASTM D445 — 7.1 — cSt
Viscosity index — ASTM D2270 — 134
Flash point (COC) — ASTM D92 — 250 — °C
Pour point — ASTM D5950 — −14 — °C
Density at 15°C — ASTM D4052 — 0.8425 — kg/L
Color — ASTM D1500 — L0.5
Saturates — ASTM D2007 — >99 — wt%
Sulfur — ASTM D5453 — <0.1 — wt ppm
Noack volatility — ASTM D5800 — 4.0 — wt%
These are the results held for this grade. The certificate of analysis supplied with the shipment applies to that cargo.
Other grades in this range
These are other grades Synergysol Trading supplies. The figures in this section belong to those grades.
6 cSt is the preceding class. Group II N500 and Group I SN-500 are the other heavy neutrals. SN-500 is published at 85.8 mm²/s at 40°C and 9.5–11.2 cSt at 100°C. BS-150 is bright stock at 476.2 mm²/s at 40°C.
Frequently asked questions
What is Group III 8 cSt used for?
Heavier engine oils, gear oils, and industrial lubricants that specify an 8 cSt Group III base oil.
How does 8 cSt compare with SN-500?
SN-500 is Group I, published at 9.5–11.2 cSt at 100°C and viscosity index 89. Group III 8 cSt is the class defined at a viscosity index of 120 or higher.
What does the grade name mean?
8 cSt is the commercial viscosity class at 100°C. This grade is published at 7.1 cSt at 100°C, viscosity index 134, and Noack volatility 4.0 wt%.
What are the published results for Group III 8 cSt?
Kinematic viscosity is 41.10 cSt at 40°C and 7.1 cSt at 100°C. Viscosity index is 134, flash point 250°C, pour point −14°C, Noack volatility 4.0 wt%, saturates >99 wt%, and sulfur <0.1 wt ppm.
How do I request Group III 8 cSt?
Send Group III 8 cSt, the quantity, packing, and delivery point to info@synergysoltrading.com. Phone +971 4 553 2197 or +971 50 669 3010.
Related grades
Request this grade
Email info@synergysoltrading.com with the grade, quantity, packing, and delivery point.
+971 4 553 2197 · +971 50 669 3010
Ontario Tower, Floor 22, Unit 2202, Business Bay, Dubai, U.A.E.