Antifreeze, or engine coolant, is a liquid solution designed to regulate engine temperature within a vehicle and wick away excess heat to the radiator. This auto maintenance product is used with internal combustion engines, although some engines require specialty formulas to comply with vehicle regulations, especially newer engines. Antifreeze is poured into the coolant chamber, typically found under a vehicles hood although often installed in different configurations based on the model of vehicle. The best antifreeze products below were chosen based on their wide temperature range of performance, their compatibility with many car models and for their long service life.
Valvolines MaxLife brand of antifreeze is our top choice because it is highly compatible with all other antifreeze brands. Valvoline utilizes patented technology that makes this formula safe for mixing with silicates and other chemicals found in most antifreeze. This prevents against the corrosion and performance issues that can occur when mixing other brands. Read Full Review
The patented Alugard Plus technology used in Valvoline MaxLife allows this antifreeze to provide optimum engine cooling even when mixed with antifreeze of other colors. Instead of flushing all of the engine coolant, a car owner can top off their antifreeze with this formula and be confident that it wont cause excessive corrosion, which sometimes happens when mixing incompatible formulas. At a 50 percent dilution with water, Valvoline MaxLife has a boiling point of 265 degrees Fahrenheit and a freezing point of -34 degrees Fahrenheit. Valvoline uses yellow dye for this antifreeze, which they choose for color compatibility with other brands. Valvoline recommends this brand for use with both gasoline and diesel engines.
Prestone Prime can be used with any type of vehicle coolant system, from small cars to tractor trailers and RVs. This formula is non-corrosive to all engine metal types, including aluminum. This antifreeze offers a longer service life over many other options available at the store. Read Full Review
Prestone Prime Antifreeze/Coolant offers superior long-lasting performance over many other brands. Cars and light-duty trucks using this formula are protected against engine overheating for 150,000 miles or 5 years. Prestone Prime is also useful for heavy-duty vehicles, such as RVs and tractor trailers. Although a 50 percent water dilution is recommended, Prime can be used at concentrations of 70 percent for protection between 276 degrees Fahrenheit and -84 degrees Fahrenheit. Long-lasting corrosion inhibitors in this antifreeze provides extra protection against rusting and water pump failure.
PEAKs Global LifeTime antifreeze is formulated to work with radiator coolant systems manufactured across the world. The product promises lifetime service when proper maintenance techniques are followed. This formula is also designed to work with many other brands of antifreeze. Read Full Review
This antifreeze from PEAK provides engine protection in all vehicles manufactured in America, Europe or Asia. Car owners can perform a coolant flush and replace with PEAK Global LifeTime and not have to change the coolant again, when following proper maintenance. The PEAK formula is phosphate and silicate-free, making it capable of topping off older antifreeze without requiring a flush. The amber color of this formula keeps from discoloring other antifreezes when mixed, so that a car owner can know exactly what color antifreeze should go in the vehicle. This product comes pre-diluted at a 50 percent concentration for quick use. This brand is promoted by PEAK as the worlds only extended life antifreeze technology to be approved by original equipment manufacturers across the world, including Ford and Daimler-Chrysler.
This universal antifreeze comes with Pennzoil extended life technology for optimum coolant performance without flushing. This brand is compatible with many types of vehicles and antifreeze solutions. This Pennzoil antifreeze is great at protecting engine system metals at very high temperatures, even aluminum which is conducive to corrosion. Read Full Review
Pennzoil Multi-Vehicle Extended Life Antifreeze is an ethylene glycol formula that offers universal compatibility with engine coolant systems for all cars and trucks. The service life of this product is rated at 5 years or 150,000 miles driven, requiring fewer changes. The chemicals used by Pennzoil for this engine coolant do not react corrosively with other antifreezes, which prevents problems from mixing or topping off old coolant, whether that coolant is conventional or an extended life formula. This antifreeze is given a slight yellow dye so it can be added to older antifreeze without changing the color drastically. This product has an extremely high boiling point of 345 degrees Fahrenheit for superior protection for all engine metals at high temperatures.
This is a less premier brand of Prestone antifreeze than Prime, but Extended Life Antifreeze still maintains a wide scope of use among different car models. This Prestone product also utilizes extended life technology so that car owners can go long periods between flushes. This formula offers good service balanced against a cheaper price tag than many other extended life coolant brands. Read Full Review
Prestone Extended Life Antifreeze/Coolant can be used with any make or model of car or light truck, even for vehicles that take highly specialized formulas. It can also be mixed with other antifreeze and engine coolants without the chemicals interacting poorly with each other. This product can be diluted with water to concentrations from 50 percent up to 70 percent for superior heat transfer protection. At the highest concentration, Prestone Extended Life can protect an engine within a temperature range from -84 degrees Fahrenheit to 276 degrees Fahrenheit. This product offers good compatibility coupled with a reasonable price tag compared to many similar formulas on the market.