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Petromin Super Diesel Turbo SAE 20W-50 15L lubricates heavy-duty diesel engines using a mineral base with a 125 viscosity index. It maintains a 10 mg KOH/g TBN to neutralize combustion acids. Upgrading from the SAE 40 predecessor, this multigrade variant improves cold start flow and operates across wider thermal bands.
Key Features
- High-Temperature Deposit Control: With a 230°C flash point, this oil stops carbonization. Prevents piston rings from sticking under heavy loads.
- Thermal Stability: Using a mineral base with 1.2% sulfated ash content. Reduces sludge buildup in heavy road dust.
- Corrosion Protection: Through a 10 mg KOH/g Total Base Number rating. Neutralizes acidic byproducts to stop internal metal decay.
- Viscosity Maintenance: At 18.5 cSt kinematic viscosity (100°C), the oil film stays thick. Prevents metal-to-metal contact during high heat.
Frequently Asked Questions
Is Petromin 20W-50 good for turbo engines?
This CF-4 rated oil handles the extreme heat of turbochargers. The 230°C flash point prevents oil thinning during rapid compression.
How does the 20W-50 viscosity protect the engine?
The 18.5 cSt viscosity at 100°C maintains a thick protective film. It resists shear and protects components during high-load operations.
