Motorex M5.0 Ethylene Glycol Engine Coolant 1 L Ready-to-Use — Freeze & Corrosion Protection

Motorex M5.0 Ready to Use is a pre-mixed ethylene glycol engine coolant that delivers year-round antifreeze and multi-metal corrosion protection for petrol and diesel engines.

Formulated for high-performance engines, this 1-liter, ready-to-use coolant uses ethylene glycol with a bittering agent and is free from nitrites, phosphates and amines. It provides long-lasting chemical stability and broad compatibility with cast iron, aluminum and copper alloys as well as common elastomers and plastics in cooling systems. The product is designed for convenient refill without on-site mixing; it is recommended for replacement within three years and should not be mixed with other coolants to preserve its performance.

How does Motorex M5.0 protect my engine against freezing and overheating?

As a 50% ethylene glycol-based ready-to-use formula, M5.0 lowers the freezing point and raises the boiling point of coolant in the system, reducing the risk of freeze-related damage and boil-over under heavy loads. Its stabilized composition keeps thermal transfer properties consistent across seasons.

• Ready-mixed 1 L concentration—no dilution required
• Ethylene glycol base for dependable freeze/boil protection
• Chemical stability preserves performance over time

Will this coolant corrode metals or harm seals and hoses?

Motorex M5.0 was developed to offer broad corrosion protection for the metals commonly used in engine cooling systems, including cast iron, aluminum and copper alloys. It also shows good compatibility with standard elastomers and automotive plastics, reducing the chance of premature seal or hose deterioration when used as directed.

• Formulated to protect iron, aluminum and copper alloys
• Compatible with most commercial elastomers and plastics
• Nitrite-, phosphate- and amine-free to limit deposit formation

Can I mix Motorex M5.0 with other coolants or additives?

Mixing Motorex M5.0 with other coolant formulations is not recommended, as blending can alter inhibitor balance and reduce corrosion or freeze protection. To retain the original performance and three-year recommended service interval, use a full system flush if switching from a different coolant type.

• Do not mix with other coolants—use as supplied
• If changing types, fully drain and flush the cooling system
• Follow manufacturer guidance for top-up vs full replacement

How long will Motorex M5.0 keep working in my vehicle?

When used as supplied and in a properly maintained cooling system, Motorex recommends replacing the coolant every three years to maintain inhibitor strength and protection. Regular inspections for contamination, pH shifts or visible deterioration will help ensure ongoing performance.

• Recommended service life: up to 3 years under normal conditions
• Inspect coolant appearance and level during routine maintenance
• Replace sooner if system contamination or component failure occurs

Who is this for: Motorex M5.0 Ready to Use is suited for owners and technicians of passenger cars, light commercial vehicles and high-performance engines that require a stabilized ethylene glycol coolant compatible with multiple alloys. It is ideal when you need a convenient, pre-mixed 1-liter refill that avoids on-site dilution, prefers extended corrosion protection, and follows manufacturer specifications for nitrite-, phosphate- and amine-free formulations.