Stalnoy Lev: experience with Forsage
Feedback on using two Forsage products and working with the manufacturer.
Conditions and resultsCommercial vehicles
Choose the viscosity and specification for your equipment.

Intended for heavily loaded engines in mining trucks, road construction machinery, long-haul and other vehicles, as well as industrial engines.
Suitable for mixed vehicle fleets. Compatible with exhaust gas recirculation (EGR) systems — not suitable for use with diesel particulate filters (DPF).
| SAE viscosity | 5W-40 |
| Base oil type | Synthetic |
| Kinematic viscosity at 100 °C | 12.5–16.3 mm²/s |
| Viscosity index | at least 155 |
| Flash point | not below 215 °C |
| Open-cup flash point | 215 °C |
| Pour point | no higher than -37 °C |
| Base number | at least 9.0 mg KOH/g |
| Sulphated ash | no more than 1.5 % |
| Water content by mass | traces only |
| Mechanical impurities by mass | no more than 0.015 % |
Specifications are based on manufacturer data. Check the equipment manufacturer’s requirements before selecting a product.
Intended for heavily loaded engines in mining trucks, road construction machinery, long-haul and other vehicles, as well as industrial engines.
Suitable for mixed vehicle fleets. Compatible with exhaust gas recirculation (EGR) systems — not suitable for use with diesel particulate filters (DPF).
| SAE viscosity | 10W-40 |
| Base oil type | Semi-synthetic |
| Kinematic viscosity at 100 °C | 12.5–16.3 mm²/s |
| Viscosity index | at least 140 |
| Flash point | not below 215 °C |
| Open-cup flash point | 215 °C |
| Pour point | no higher than -35 °C |
| Base number | at least 9.0 mg KOH/g |
| Sulphated ash | no more than 1.5 % |
| Water content by mass | traces only |
| Mechanical impurities by mass | no more than 0.015 % |
Specifications are based on manufacturer data. Check the equipment manufacturer’s requirements before selecting a product.
Intended for heavily loaded engines in mining trucks, road construction machinery, long-haul and other vehicles, as well as industrial engines.
Suitable for mixed vehicle fleets. Compatible with exhaust gas recirculation (EGR) systems — not suitable for use with diesel particulate filters (DPF).
| SAE viscosity | 15W-40 |
| Base oil type | Mineral |
| Kinematic viscosity at 100 °C | 12.5–16.3 mm²/s |
| Viscosity index | at least 125 |
| Flash point | not below 215 °C |
| Open-cup flash point | 215 °C |
| Pour point | no higher than -25 °C |
| Base number | at least 9.0 mg KOH/g |
| Sulphated ash | no more than 1.5 % |
| Water content by mass | traces only |
| Mechanical impurities by mass | no more than 0.015 % |
Specifications are based on manufacturer data. Check the equipment manufacturer’s requirements before selecting a product.