Since the mid 90s antifreeze has been evolving, this evolution has been from conventional antifreeze to long life antifreeze technology. Long life coolants are generally organic acid technology (OAT), and/or hybrid organic acid technology (HOAT) which represents several major improvements over "conventional" antifreeze technology. As with any new technology, introduction of this new type of antifreeze has caused some confusion. We will explore long life coolants and go over some of the more common questions asked about this technology.
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