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.

The color of healthy engine coolant is green (for ethylene glycol) or orange (for Dexcool). A rusty color indicates that the rust inhibitor in the coolant has broken down and it can no longer ...

Antifreeze comes in various different colors, but their meaning has changed over the years. Here's what they mean - and what happens if you mix the wrong ones.

Though coolant and antifreeze are often used interchangeably, they aren’t the same. ... Antifreeze comes in different colors, such as green, orange and pink, among others, ...

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 of ...

Cars born with green coolant shouldn't be changed to orange. It's also a bad idea to mix the two. Plus a few other things you should know.

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.

Coolant is as vital as oil for your ... color is not a reliable predictor for what type of coolant ... HOAT coolants are orange and yellow for the most part. Then the older IAT coolant is green.

I used to recommend changing coolant every 30,000 miles or three years. But as coolants and engine technology continue to improve, I’ve softened my position on coolant changes. Assuming a long ...

“At the time, SCAs were red in color,” Cook recalls. “And when you mixed them with fresh, green, automotive coolant, you ended up with a brown-colored fluid.