Heavy-Duty Diesel Engine Oil
The everyday fill for construction, mining, transport and generating engines without exhaust after-treatment restrictions. Specified by performance class first and viscosity grade second, which is the order the engine manual sets them in.
Features
- Formulated for soot handling and wear protection under sustained load, which is the duty an engine in a loader or a generating set actually sees.
- Used in engines where no low-ash restriction applies, so the additive package can carry a higher base number.
- Available as mineral, part-synthetic and full-synthetic builds; the synthetic option earns its cost mainly in cold starting and extended drains.
- The same grade in several pack sizes lets a depot run one oil across a fleet rather than several near-identical ones.
Specifications
| Figure | Typical range | Unit | Why it matters |
|---|---|---|---|
| Viscosity grade | 15W-40 | the fleet-standard grade for temperate and hot conditions | |
| Base oil type | mineral / part synthetic | drives cold performance and price | |
| Total base number | 10 | mg KOH/g | acid reserve for the fuel quality in use |