Lorenzetti COOLANT RED 5LTR

Color / Dye for Identification

Red (or red‑orange) dye helps distinguish it from other coolant types and aids in leak detection.

Base Chemistry & Additive Technology

Often organic acid technology (OAT) or hybrid organic/inorganic additive packages.

Free of silicates, phosphates, nitrites, amines, or borates in many modern formulations.

Designed for long life — some promise up to 8 years / 500,000 km in service life.

Corrosion & Cavitation Protection

Inhibitors that protect metals like aluminum, cast iron, steel, copper, brass.

Helps prevent pitting, scale, rust, and deposits in the cooling system. 

Some variants are specifically optimized to protect against cavitation in wet cylinder liners (for diesel engines). 

Thermal / Freeze / Boil Protection

Provides protection against freezing at low temperatures. e.g. down to –37 °C (50/50 mix) in some red coolants.

Raises the boiling point in pressurized systems, reducing risk of overheating / boil‑over.

Maintains heat transfer efficiency and temperature stability under load.

Compatibility / Safe with Engine Components

Safe for gaskets, hoses, plastic parts, and rubber seals. Autopro+1

Compatible with modern cooling systems (aluminum radiators, mixed metal systems). 

In many cases, can be used as a top‑up or replacement for other red / OAT coolants (after system flush) without adverse effects. 

Long Service Life / Stability

Designed to last longer than conventional coolants (often 5‑8 years or long mileage) when properly diluted and maintained.

Inhibitor packages are more stable and less likely to degrade over time. Autopro

Many are ready‑to‑use (premixed) variants, eliminating the need for dilution. alliedhome

Anti‑Foaming / Scale / Sludge Control

Some formulas include additives to prevent foaming and scale formation in the cooling circuit. 

Helps maintain clean coolant pathways and avoid clogging. Impala Shopping Tanzania

All‑Season Protection

Works across a wide temperature range (cold start protection, hot engine operation). 

Suitable for both petrol and diesel engines, in many cases.