Cerma Universal Antifreeze Triple Protection Coolant

Yes — Cerma Universal Antifreeze is compatible with all coolant types: conventional green (IAT), OAT (Dex-Cool, orange/pink), HOAT (hybrid), and all manufacturer-specific formulas including European silicated coolants and Asian phosphated coolants. For best results, we recommend a full flush and fill to get maximum benefit from Cerma's triple protection technology, but mixing is safe if needed for top-offs. When switching, the new Cerma formulation will gradually dominate the system's protective properties as fluid is used and topped off over time.

A standard 50/50 mix of Cerma concentrate and RO water provides freeze protection to approximately -34°F (-37°C) and boil-over protection to approximately 265°F (129°C) when used with a 15-psi radiator cap. For extreme cold climates (Alaska, northern Canada, Midwest winter), a 60/40 ratio (60% concentrate, 40% water) provides additional freeze protection down to approximately -62°F (-52°C). Do not exceed 70% concentrate — higher concentrations reduce heat transfer efficiency, which can actually cause cooling problems and hot spots. For extremely hot climates (Arizona, Texas summer), the standard 50/50 is ideal — adding more concentrate does not improve boil-over protection.

The 4 variants differ in volume and concentrate vs pre-mixed. (1) ½-Gallon Concentrate ($26.44) — best for a single car/SUV top-off; add your own ½ gallon RO water to make 1 gallon of 50/50. (2) 5 Gallons Pure in 1-Gallon Jugs — 5 separate gallon jugs of pure antifreeze; mix each with equal RO water for flexibility on multi-vehicle service. (3) 5-Gallon Concentrate — bulk concentrate for shops; makes 10 gallons of 50/50 with 5 gallons of RO water. (4) 30-Gallon Pure + 25 Gal RO ($995.45) — fleet-ready; ships with both components to produce 55 gallons of 50/50 without needing a separate water source. The most economical per-gallon option is the 30-gallon fleet variant; the most convenient for home/single-vehicle use is the ½-gallon concentrate.

Yes — Cerma Universal Antifreeze is formulated to meet key ASTM International coolant specifications: ASTM D3306 (standard spec for engine coolant used in light-duty gasoline and diesel applications), ASTM D4985 (pre-charged heavy-duty engine coolant), and ASTM D6210 (long-life heavy-duty engine coolant). These specifications define corrosion protection for all standard cooling system metals (aluminum, cast iron, copper, brass, solder, steel), minimum freeze and boil-over performance, and chemical stability requirements. Cerma also works with OEM extended-life coolant specifications including GM Dex-Cool (GMW 15646), Ford WSS-M97B44-D, and Chrysler MS-9769.

Water and glycol-based coolants naturally form a thin vapor film on hot metal surfaces inside your engine (called the Leidenfrost effect at extreme heat, and surface tension effects at normal operating temperatures). This film acts as an insulator — heat has to cross it before reaching the coolant. Cerma's wetter water technology uses surfactants that reduce the surface tension of the coolant, allowing it to make direct contact with hot metal surfaces. More direct contact = more efficient heat transfer. In practical terms, this typically results in 5–15°F lower operating temperatures under load, which reduces detonation/knock, extends oil life, and can help in high-performance, towing, and hot-climate applications. The technology does NOT replace a properly sized cooling system — if your radiator, fan, or thermostat has a mechanical problem, wetter water alone can't compensate.

Yes — Cerma Universal Antifreeze works in marine engines that use closed cooling systems (also called "freshwater-cooled" with a heat exchanger). Closed cooling systems are found on inboard marine engines from Mercury MerCruiser, Volvo Penta, Crusader, PCM, Yanmar, Cummins Marine, and most modern yachts. The corrosion protection for all 6 metal alloys is especially valuable in marine environments where saltwater exposure, humidity, and temperature cycling accelerate corrosion. Do NOT use automotive antifreeze as raw water cooling — antifreeze is only for the closed side of the cooling system. For winterization of the open raw-water side, use marine-specific non-toxic propylene glycol antifreeze (pink) — not Cerma or other ethylene glycol products.

Cerma Universal Antifreeze provides extended fluid life compared to standard coolant. As a guideline: follow your vehicle manufacturer's recommended coolant change intervals (typically 5 years / 150,000 miles for OAT extended-life systems; 2 years / 30,000 miles for conventional green systems). Between changes, test periodically with: (1) pH test strips — fresh coolant should read pH 8.5–10.5; below 7.5 means protection is compromised; (2) Freeze-point tester (refractometer or hydrometer) — confirm freeze protection remains in spec; (3) Visual inspection — clear amber color is normal; murky brown, rust-colored, or oily appearance indicates contamination or degradation. For severe service (heavy towing, extreme climates, fleet use), test every 6 months and change at the first sign of pH drop or degradation.

Tap water contains dissolved minerals (calcium, magnesium, iron, silica) and chemical treatments (chlorine, chloramines, fluoride) that create problems in a cooling system. Minerals precipitate out under heat and form scale deposits on cylinder walls, in the radiator core, and inside water pump impellers — reducing heat transfer and restricting coolant flow. Chlorine and chloramines corrode aluminum components (water pump housings, modern radiator cores, engine heads) and react with Cerma's corrosion inhibitors, reducing their effectiveness. Use instead: reverse osmosis (RO) water from a water treatment system or grocery store, distilled water (1-gallon jugs from most grocery/drug stores, typically $1–$2), or deionized water. All three options have dissolved solids below 10 ppm, which is the threshold for cooling system compatibility. Never use well water, spring water with high mineral content, or rainwater for cooling systems.