Group III
Base Oil Group III 6 cSt
Group III 6 cSt base oil for passenger-car and heavy-duty engine oils.
What is Base Oil Group III 6 cSt?
Group III 6 cSt base oil is the mid viscosity class supplied by Synergysol Trading. The name is the kinematic viscosity class at 100°C. In a passenger-car or heavy-duty engine oil it supplies the heavier portion of a Group III blend, next to a 4 cSt stock.
API Group III base oil requires a viscosity index of 120 or higher, saturates of at least 90%, and sulfur of 0.03% or below. Gear oils and industrial lubricants that specify this class use the same grade. Group II N230 is the mid Group II grade.
Applications
Synergysol Trading supplies Group III 6 cSt base oil for engine oils and industrial lubricants in the mid viscosity class.
Passenger-car engine oils. The 6 cSt class is the heavier Group III component beside 4 cSt.
Heavy-duty diesel engine oils. Diesel formulas that specify Group III use 6 cSt for the mid-to-heavy part of the blend.
Gear and transmission oils. Gear oils written on Group III name the 6 cSt class when the viscosity sits here.
Industrial lubricants. Industrial oils that specify a 6 cSt Group III base oil are filled from this grade.
Specification
Appearance — Bright & Clear
Kinematic viscosity at 100°C — ASTM D445 — 5.8–6.2 — mm²/s
Viscosity index — ASTM D2270 — 130
Flash point (COC) — ASTM D92 — 220 — °C
Pour point — ASTM D97 — −15 — °C
Sulfur — ASTM D2622 — 10 — mg/kg
Water — ASTM D6304 — 50 — mg/kg
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.
4 cSt is the lighter engine-oil class. 8 cSt is the heavy class. Group II N230 is the mid Group II grade. Group I SN-350 is the solvent-refined mid grade.
Frequently asked questions
What is Group III 6 cSt used for?
Passenger-car and heavy-duty engine oils, gear oils, and industrial lubricants that specify a 6 cSt Group III base oil.
How is 6 cSt used with 4 cSt?
Engine-oil formulas blend the 4 cSt class with the 6 cSt class to set the finished viscosity. Each grade is supplied separately.
What does the grade name mean?
6 cSt is the commercial viscosity class at 100°C. The certificate states kinematic viscosity at 100°C of 5.8–6.2 mm²/s and viscosity index 130.
What are the published results for Group III 6 cSt?
Kinematic viscosity at 100°C is 5.8–6.2 mm²/s. Viscosity index is 130, flash point 220°C, pour point −15°C, sulfur 10 mg/kg, and water 50 mg/kg. Appearance is bright and clear.
How do I request Group III 6 cSt?
Send Group III 6 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
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