Can you mix green antifreeze with universal antifreeze?

Makers of universal coolants say their products are formulated to be compatible with all cooling systems (foreign or domestic) and all coolant types (traditional green, OAT and OAT-hybrid with silicate).

Can universal antifreeze be mixed with any color?

Can you mix antifreeze coolant brands?

If you mix two different coolants together, it will create a think substance that resembles that of a jelly. If this happens, the coolant will not be able to do its intended job. Instead, it will cause the engine to overheat. The damage can reach gasket, water pump, and radiator.

Is all green antifreeze the same?

And you do need at least a 70/30 antifreeze/water mix for the best results. Typically, Valvoline says, coolant comes in green. These different types of antifreeze all do broadly the same things. They prevent water from freezing and boiling off and inhibit corrosion and mineral deposits in the radiator.

Is green coolant universal?

Most conventional green or blue coolants use an inorganic (IAT) technology to prevent corrosion, that is, they are ethylene glycol or propylene glycol based. Several factors make them universal, most notably organic-acid technology (OAT), a uniquely concentrated single-component, multi-metal corrosion inhibitor.

What antifreeze is green?

The Colors of Coolant

TYPE	INHIBITOR TECHNOLOGY	COLOR
IAT (Inorganic Additive Technology)	Silicates	GREEN
OAT (Organic Acid Technology)	Organic Acids	ORANGE
HOAT (Hybrid OAT)	Silicates & Organic Acids	YELLOW
HOAT (Hybrid OAT, Phosphate-free)	NAP Free	TURQUOISE

Can you mix different brands of green coolant?

Different brands are fine as long as they’re made with the same chemicals. (The label will say what coolant(s) its compatible with) Mixing different types is a solid no. They will likely interact with each other and create solids. The solids they create will act like sand paper in your cooling system destroying seals.

Is green coolant bad?

Green Antifreeze IAT is a mixture of various compounds such as phosphates and silicones, with either propylene glycol or ethylene glycol. If we lost you there, don’t feel bad.

Can you mix different types of antifreeze together?

Although you might able to use another form of antifreeze, this is still subject to your vehicle manufacturer’s specifications. But without a doubt, mixing different antifreeze together is never an advised alternative. You need to know the various types of antifreeze used for specific cars and also the coolant color meaning.

What happens if you mix green and orange antifreeze?

For instance, if you mix green and orange anti-freeze, the two different types of additives will mix and coagulate. In short, they’ll get thick and gum up the system. Not only does this shorten the lifespan of the coolant, but it can cause your engine to overheat and damage your system.

Are universal coolants compatible with all cooling systems?

Makers of universal coolants say their products are formulated to be compatible with all cooling systems (foreign or domestic) and all coolant types (traditional green, OAT and OAT-hybrid with silicate).

What color antifreeze should I use in my car?

If you don’t know, go ahead and flush the entire system before potentially mixing the wrong type of coolant. While green and orange anti-freeze products are by far the most common, you can also find vehicles that use a pink, blue, or gold anti-freeze.