CMJ Brothers • Professional-Grade Motor Oil
CMJ Brothers – Reliable Performance for Everyday Driving
CMJ Brothers motor oils are crafted for clean, efficient, and long-lasting engine performance. A dependable choice for workshops and distributors, delivering strong protection and stable viscosity across all seasons.
Key Features
- Synthetic technology for cleaner engines and reduced wear.
- Excellent oxidation stability for longer service intervals.
- Strong detergent/dispersant package to control sludge and deposits.
- All-season performance with fast cold starts and reliable high-temp protection.
Meets major industry standards (e.g., API SN/SP, ILSAC GF-6 where applicable). Check the label per grade.
Available Viscosity Grades
5W-20
5W-30
10W-30
10W-40
20W-50
Common packaging: 1 QT (946 mL) • 5 QT • Bulk options depending on market.
Technical Specifications (Typical)
| Property | Method | Typical |
|---|---|---|
| Viscosity @ 40°C | ASTM D445 | Varies by grade (e.g., 5W-30 ≈ 60–70 mm²/s) |
| Viscosity @ 100°C | ASTM D445 | Varies by grade (e.g., 5W-30 ≈ 10–12 mm²/s) |
| Viscosity Index | ASTM D2270 | ≥ 140 |
| Pour Point | ASTM D97 | ≤ −33°C |
| NOACK Volatility | ASTM D5800 | Low volatility (economy-minded) |
| Specifications | — | API SN/SP • ILSAC GF-6 (per grade) |
Become a Distributor
Work with CMJ Brothers – a professional-grade lubricant line trusted by workshops and retailers.

