Purpose and Specifications

Comma X-Flow Type MOT 20W50 is a mineral engine oil designed specifically for older vehicles and high-mileage cars that require thicker oil protection. This 4.5-litre bottle provides reliable engine protection for both petrol and diesel engines, making it an economical choice for workshop professionals and vehicle owners maintaining classic or aging vehicles.

The 20W50 viscosity rating means the oil flows easily when your engine is cold (winter starts) but maintains a protective thick film when the engine reaches operating temperature. This balance is essential for engines with worn components that benefit from extra cushioning.

When to Use / Replace?

Ideal for vehicles with:

• Over 80,000 miles on the odometer
• Visible wear in engine components
• Engines designed for thicker oils (check your owner's manual)
• Classic or heritage vehicles built before modern synthetic oil standards

Oil change intervals: Replace every 5,000 to 6,000 miles or every 6 months, whichever comes first. High-mileage engines may benefit from more frequent checks between changes.

Operating temperature range: Safe for use in engines operating between -10°C and +40°C ambient conditions. Store the unopened bottle in a cool, dry location away from direct sunlight.

Shelf life: Mineral oils like this typically remain effective for 3 to 5 years when stored properly in sealed containers.

Frequently Asked Questions

Q: Can I use this oil in modern cars?
A: No. Modern vehicles require oils meeting current specifications (like 5W30 or 0W20). This oil is formulated for older engines. Always check your vehicle's manual.

Q: Why is 20W50 thicker than newer oils?
A: Older engines have larger tolerances between moving parts due to wear. Thicker oil fills these gaps better and provides adequate protection. Newer engines are built tighter and need thinner oils for efficiency.

Q: Is mineral oil less effective than synthetic?
A: Mineral oil provides solid basic protection at lower cost, making it practical for high-mileage vehicles you maintain regularly. Synthetic oils last longer between changes but cost more upfront.