Purpose and Specifications

FEBI BILSTEIN 26581 is a premium green antifreeze coolant designed to protect your engine from freezing and overheating. This ready-to-use 5-liter coolant meets Renault Type D and Glaceol RX specifications, making it ideal for Renault, Dacia, and compatible European vehicles.

Key Protection Features:

• Freezing protection down to -35°C – keeps coolant flowing in harsh winter conditions
• Corrosion inhibitors protect aluminum and cast iron engine components from rust and degradation
• Prevents scale buildup inside cooling passages, maintaining heat transfer efficiency
• Compatible with modern engine materials and gasket systems

Specifications: G11 grade, green color, 5-liter canister, 5.9 kg total weight

When to Use / Replace?

Replace your coolant every 2-3 years or 40,000-60,000 km, whichever comes first. Check your owner's manual for your vehicle's specific interval. Signs you need a coolant change include discolored or cloudy fluid, visible rust particles, or a sweet smell from the engine bay.

Use this antifreeze in spring or fall when temperatures are mild – never drain hot coolant. Always allow the engine to cool completely before opening the radiator cap.

Frequently Asked Questions

Q: Can I mix this with other coolant brands?
A: No. Always use the same coolant type throughout your cooling system. Mixing different brands or types can reduce protection and cause chemical reactions. If switching brands, flush the system completely first.

Q: How long does an unopened bottle last?
A: Sealed antifreeze typically remains effective for 3-5 years when stored in a cool, dry place away from direct sunlight. Once opened, use within one season.

Q: Is this safe for all Renault and Dacia models?
A: This coolant is compatible with Renault Type D and Glaceol RX specifications. Check your vehicle's manual to confirm your model uses Type D coolant – some older or newer models may require different specifications.