The colors were especially helpful to DIYers without access to a repair guide or owner's manual, as coolant color was a reliable indicator of the type of antifreeze filling their vehicle.

Antifreeze colors are more than just cosmetic; they often indicate the type of formula used. Green and orange antifreeze serve the same purpose but cater to different types of vehicles and materials.

Inorganic Additive Technology (IAT) coolant is the oldest and most recognizable antifreeze out there. It's bright green in color and is typically found in older vehicles.

Though coolant and antifreeze are often used ... but many current vehicles can go 100,000 miles before a flush is needed or never require new coolant. Antifreeze comes in different colors, such ...

Remember when all coolant was green? Now it also comes in orange, yellow (gold and amber), red, pink, blue and, if you mix the wrong things together, brown. Here’s a primer on the varieties o… ...

The antifreeze – or coolant – in the engine of your petrol-powered vehicle is somewhat like the air humans breathe. It’s taken for granted until there isn’t any, then bad things happen.

Modern antifreeze, he says, is 96-percent ethylene glycol, which provides the freeze protection, ... automakers are becoming more venturesome in choosing coolant colors. ...

Antifreeze comes in different colors, and you need to get the right one for your car. It used to always be green, but orange is now fairly common, and there are also other colors.

Of course, coolant really has two main jobs, which is why the terms “coolant” and “antifreeze” are interchangeable. ... but we’ll use those common colors for shorthand here.

If both the antifreeze and your cooling system are in good shape, it should maintain its color. If the coolant you pull out of the radiator or expansion tank looks muddy, that’s a sign that your ...