PEAK® Conventional Full Strength Antifreeze + Coolant provides maximum protection from freezing to -84˚F and boil-over to +276˚F. Protects all cooling systems, metals, including aluminum, against damaging rust and corrosion when used as recommended.

Old World Industries Old World Industries (OWI) is an American automotive and chemical company best known for their PEAK brand of motor oil, antifreeze and other automotive products. The company markets itself as an "independent, family-owned business". It sells products in over 60 countries. Old World Industries, LLC.

PEAK Antifreeze + Coolant is free of 2-EHA, silicate, nitrate, borate, and amines, ensuring maximum cooling system performance for 10+ years/300,000+ miles*. It is compatible for use with any color or type of antifreeze/coolant in the system.

Nulon Green Premium Long Life Coolant 100% Concentrate is a low silicate formulation containing no nitrite, phosphate or amine. These chemicals are often used in conventional coolants and have limitations in performance, protection afforded, and vehicles to which they are suited.

Generally a 50/50 mix is recommended, but others say a 70/30 mix of antifreeze and water should be okay. There are a few mechanics who will say using straight antifreeze is just fine, but other vehicle experts will say pure antifreeze could cause some significant damage to your vehicle.

Pure antifreeze lacks sufficient heat capacity to keep the engine cool. In fact, if you put pure antifreeze into the cooling system, the heat-transfer capabilities are lowered by 35%, and it could really damage on the engine, especially in hot weather.

Like all chemical compounds, antifreeze is manufactured in factories. Ethylene glycol is produced by chemically bonding four carbon atoms, six hydrogen atoms and two oxygen atoms. There are over fifteen variations of antifreeze. Most use glycol, but additives vary.

• In-Package Dimensions: 7.7 Inches x 11.8 Inches x 4.05 Inches.
• Warning: Harmful or fatal if swallowed. Contains Ethylene Glycol.
• Model: PRAB53.
• Usage Instructions: Do not add water. Remove radiator cap when engine is cool.
• Ingredients: Water (7732-18-5), Ethylene Glycol (107-21-1), Proprietary Inhibitors (NJTSRN QT-1).

There are three types of antifreeze available: Inorganic Acid Technology (IAT), Organic Acid Technology (OAT), and Hybrid Organic Acid Technology (HOAT).

Coolant Concentrate Basic is an engine coolant concentrate (antifreeze) based on monoethylene glycol, containing no nitrites, amines or phosphates (NAP free). Suitable for both petrol and diesel engines.

Concentrated coolants are packaged to be diluted to a specific coolant concentration ratio i.e 50% by mixing with water. Pre-mix coolants are already diluted with water at a preset ratio normally between 33% to 50%.

A 50/50 mixture of antifreeze and water is the standard recommendation for most applications because it provides the best all-round cooling protection and performance for most applications. Premixed antifreeze is 50/50 and takes the guesswork out of correctly mixing antifreeze and water.

Mixtures with a ratio of 50:50 work almost in every climate. In climates where temperatures drop below 0℃ for a longer period, mixtures closer to 60% antifreeze and 40% water are better suited to keep coolant from freezing.

Antifreeze is comprised primarily of either ethylene glycol or propylene glycol. Antifreeze may contain additives as well, such as silicates, nitrates, azoles, or borates to prevent oxidation and corrosion. These additives usually make up less than 10% of the total solution.

Ethylene glycol, propylene glycol, and glycerol (all used in automotive antifreeze) are commonly used as biological cryoprotectants.

Nearly all engines use coolants with similar base fluids: a 50/50 mix of ethylene glycol and water. In some circumstances, industrial engines may use other base fluids, such as additized water or a mixture of propylene glycol and water.