ThatвЂ™s usually orange or yellow.ДЄ good rule of thumb? DonвЂ™t mix types or colors.

OAT coolant has additional additives and protectants that are meant to go around 10 years before being flushed.ДЄnd then, of course, thereвЂ™s a combination of the two вЂ“ called HOAT (hybrid organic acid technology). OAT coolant comes in many colors вЂ“ the most common colors are orange or bright red, but OAT coolant can also come in blue and dark green. Premium Modular Engine Coolant Molded Radiator Hose (24665) by Gates. Gates Premium Modular Engine Coolant Molded Radiator Hose (24665) 0. Newer engines, especially in vehicles from carmakers outside the U.S., have OAT (organic acid technology). Heat and ozone resistant cover Re-engineered materials resist vacuum collapse, this reduces the need for internal springs in many applications. These engines, still in use today, work exactly as the name suggests. Engine cooling water (simply coolant) is by no means immune to this world trend and is required to be more and more environment-friendly.

If your engine has conventional antifreeze and it looks brown, itвЂ™s a sign that thereвЂ™s corrosion in your radiator and itвЂ™s definitely time for a coolant flush to protect your engine. The internal combustion engine (ICE) came onto the scene in 1876. IAT coolant is a recognizable bright green and generally needs to be changed every 2 years/30,000 miles. Automakers donвЂ™t adopt new coolants on a simple schedule. Both OAT and HOAT are often orange or yellow, so they can be easily misidentified. Coolant type cannot be accurately identified by color. The coolant you might be most familiar with, present in cars since WWII, is called IAT (inorganic acid technology). Here are a few other points to remember when it comes to your engine coolant choice: 1. This is a surprisingly complicated question, because newer, modern engines have changed some of the rules.

Coolant engine