CarPlan Demon Cool Antifreeze & Summer Coolant - 1L

Demon Cool is a universal top-up antifreeze and coolant suitable for use in all vehicles, includin...

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eBayWinter Antifreeze & Summer Coolant Universal Top Up CarPlan Demon Cool 1L x12
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B&QB&Q - Winter Antifreeze & Summer Coolant Universal Top Up Demon Cool 2X 1L
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Product Information

Full details

CarPlan Demon Cool is a versatile, ready-to-use antifreeze and coolant designed for vehicle owners who need a reliable, hassle-free top-up solution for both petrol and diesel engines. Its primary benefit is its universal compatibility, as it can safely mix with any existing antifreeze color in your cooling system to provide protection against extreme temperatures and corrosion. While highly convenient for maintenance, users should ensure they do not overfill their expansion tank beyond the manufacturer-specified maximum level when the engine is cold.

All features

Model Part NumberDCO101
BrandCarPlan

Extended Product Information

FAQs

Can I use this with any color coolant?

Yes, Demon Cool is a universal formulation designed to be safely mixed with all colors of existing antifreeze.

Does this need to be diluted with water?

No, it is already pre-mixed with de-ionised water and is ready to pour directly into the cooling system.

Is it safe for diesel engines?

Yes, it is fully compatible with both petrol and diesel engines.

How long does the protection last?

The synthetic additive package provides superior corrosion resistance for up to 5 years.

What happens if I accidentally overfill the tank?

If you fill past the 'Max' line, the system may vent the excess when the engine reaches operating temperature; it is best to remove the extra fluid with a syringe to avoid mess.

Troubleshooting

Coolant level drops frequently

Check your radiator hoses, water pump, and radiator for visible leaks or signs of weeping.

Engine overheating despite adding coolant

Ensure the cooling system is free of air locks and check that the radiator fan is engaging correctly.

Discoloration of coolant in the tank

If the coolant appears muddy or rusty, it may be time for a full system flush as the existing inhibitors may have depleted.

Pros and Cons

Pros

  • Safe to mix with any existing coolant color
  • Pre-mixed for immediate, error-free usage
  • Provides long-term corrosion protection up to 5 years
  • Effective in extreme cold down to -36ºC
  • Suitable for both petrol and diesel engine types

Cons

  • 1L bottle may not be enough for a full system flush
  • Must be added only when the engine is completely cold
  • Not a concentrate, so volume is limited to 1L

Setup, Compatibility & Care

To use CarPlan Demon Cool, ensure your engine is completely cool before attempting to open the radiator cap or expansion tank lid, as the system is often under pressure. Once cool, remove the cap and pour the fluid until it reaches the recommended 'Max' fill line indicated on the reservoir. There is no need for specialized tools, as the bottle is designed for direct pouring. Keep the container stored in a cool, dry place away from direct sunlight to maintain the integrity of the chemical additives. Always dispose of used or spilled coolant according to local environmental regulations, as antifreeze is harmful if ingested by pets or wildlife.

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