Purpose and Specifications

PRO-TEC OAS Engine Oil Additive is a multi-purpose oil treatment designed for both gasoline and diesel engines. This 375ml additive boosts your engine oil's protective properties by reducing friction between moving metal parts, minimizing wear, and extending engine life.

Key benefits include:

• Reduces oil consumption and fuel waste
• Lowers engine operating temperatures by improving heat transfer
• Protects against rust, corrosion, and acid buildup
• Cleans engine deposits and improves combustion efficiency
• Stabilizes oil viscosity across temperature ranges

Mixing Ratio: 375ml treats approximately 5 liters of oil (1 part additive to 15 parts oil). Compatible with all commercially available motor oils and suitable for 4-stroke gasoline and diesel engines.

When to Use / Replace?

Add PRO-TEC OAS during your regular oil change or when you notice increased oil consumption. For older engines with worn seals, this additive helps regenerate rubber and plastic components, reducing leakage. One 375ml bottle provides treatment for a complete oil system refresh. Reapply with each oil change for continuous protection. Typical engine oil changes occur every 5,000–10,000 km or every 3–6 months, depending on driving conditions and manufacturer recommendations.

Storage: Keep in a cool, dry place. Shelf life is typically 3–5 years when stored properly.

Frequently Asked Questions

Q: Can I use this in both my diesel truck and gasoline car?
A: Yes. PRO-TEC OAS is formulated for both gasoline and diesel engines with identical dosing rates.

Q: Will this stop my engine from leaking oil?
A: This additive helps reduce oil loss through worn seals and piston rings by softening hardened rubber components. It won't fix major mechanical damage but works well for minor seepage in older engines.

Q: How soon will I see results?
A: You may notice smoother engine operation and reduced oil consumption within the first 500–1,000 km of driving after application.