Motorex Ethylene Glycol Engine Coolant M5.0 — Ready-to-Use 1L, Nitrite-Free Corrosion Protection

Motorex M5.0 Ready to Use is a pre-mixed ethylene glycol engine coolant that delivers year-round antifreeze protection and broad corrosion control for aluminum, cast iron and mixed-metal cooling systems.

Designed for modern petrol and diesel engines, Motorex Coolant M5.0 is a factory-ready 1 liter solution formulated without nitrites, phosphates or amines. It uses a stable inhibitor package compatible with many elastomers and plastics commonly found in cooling systems, offering protection for aluminum, copper alloys and cast iron. For consistent performance, the product is supplied ready to pour and is not recommended for dilution or blending with other coolant types.

How does Motorex M5.0 protect engine metals throughout the year?

M5.0 combines ethylene glycol with a tailored inhibitor system to limit corrosion across a range of metals used in modern cooling systems. That inhibitor mix targets electrochemical attack on aluminum, copper alloys and cast iron, helping preserve radiators, water pumps and cylinder heads.

• Ready-to-use 50% ethylene glycol formulation for freeze and boil protection
• Nitrite-, phosphate- and amine-free inhibitor package to prevent deposit formation
• Suitable for mixed-metal systems (aluminum + cast iron)
• Protects water pump bearings and radiator surfaces from corrosion

Will this coolant work with my seals, hoses and plastics?

Motorex M5.0 is formulated for broad compatibility with elastomers and plastics used in automotive cooling circuits. Its high chemical stability reduces the risk of swelling, hardening or premature deterioration of hoses and gaskets compared with incompatible formulations.

• Tested for compatibility with common rubbers and thermoplastics
• Reduces risk of leaks from aged seals when used as directed
• Pre-mixed to factory concentration to avoid incorrect dilution effects

How long does a bottle of Motorex M5.0 stay effective after filling?

The recommended in-service lifetime for Motorex M5.0 is up to three years when used under normal operating conditions and maintained according to manufacturer service schedules. Regular coolant checks and system flushing at intervals specified by your vehicle maker will help retain optimum protection.

• Recommended service life: up to 3 years under normal use
• Monitor coolant concentration and condition per vehicle maintenance guide
• Replace coolant sooner if contamination, overheating, or chemical breakdown occurs

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

Motorex advises against mixing M5.0 with other coolants or different inhibitor technologies. Combining products can alter inhibitor balance and reduce corrosion protection, so use M5.0 as supplied or perform a complete system flush before switching coolant types.

• Do not mix with other coolants or concentrates—use as supplied
• Perform full system flush before changing coolant chemistry
• Mixing can shorten protective life and risk deposits or corrosion

Who is this product for? Motorex M5.0 Ready to Use 1 L is aimed at vehicle owners, workshops and fleet managers who need a dependable, pre-diluted coolant suitable for mixed-metal engines and modern cooling systems. It’s a convenient choice when you want a factory-concentration ethylene glycol coolant with wide material compatibility and a clear service interval, without the need to measure or mix concentrate.