Purpose and Specifications

EUROLUB Kühlerschutz Ready-Mix Universal RTU 4L is a ready-to-use coolant pre-mixed 50/50 with water, designed for all cars and light trucks. It protects your engine from freezing down to -37°C and boiling over in extreme heat, while premium additives shield all metals including aluminum from rust and corrosion.

• Universal fit for any vehicle model - mixes safely with existing coolants.
• Yellow color for easy leak spotting.
• 4 liter canister covers most cooling systems fully.

When to Use / Replace?

Use this coolant year-round to keep your engine running cool and protected. Replace every 2-4 years or 100,000-200,000 km based on manufacturer guidelines, or sooner if you spot discoloration, low levels, or overheating. Shelf life is 3-5 years unopened in a cool, dry place.

Operates reliably from -37°C to +135°C for everyday driving and tough conditions.

FAQ

Can I dilute it with water? No, it's ready-to-use - adding water weakens protection.

Is it safe for aluminum engines? Yes, provides top corrosion protection for aluminum and all cooling system metals.

What vehicles does it fit? All cars, light trucks, and compatible with standards like ASTM D3306.