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Petromin Fleet Master Plus SAE 20W-50 18L lubricates heavy-duty diesel engines under high thermal stress. The API CI-4/SL rating supports mixed fleets using various fuel qualities. A 10 mg KOH/g base number neutralizes combustion acids to prevent internal corrosion.
Key Features
- High TBN Retention: 10 mg KOH/g base number maintains alkaline reserve. Resists acid buildup from poor fuel quality.
- High-Sulfur Fuel Compatibility: 1.3% wt sulfated ash handles high-sulfur diesel combustion. Prevents piston deposits in regional fuel conditions.
- Extended Drain Interval: API CI-4/SL grade with 125 viscosity index. Stays stable longer between oil changes.
- Thermal Stability: 230°C flash point prevents oil evaporation at peak heat. Reduces oil consumption during long highway hauls.
Frequently Asked Questions
Is Petromin 20W-50 good for diesel engines?
This oil meets API CI-4 standards for turbocharged and naturally aspirated diesel engines. It maintains a 125 viscosity index to protect components under heavy loads.
What is the drain interval for Petromin Fleet Master Plus?
The interval depends on OEM guidelines and engine condition. High TBN retention allows for longer use compared to standard mineral oils.
