![]() If the coolants become mixed, drain, clean and flush the cooling system. It is now possible to convert OAT/NOAT coolants to a Penray Fill-For-Life® program. A 2000 MY 9-5 should be filled with G-48 formula (the new Mercedes antifreeze) or a G-05 antifreeze (the old Mercedes yellow or Zerex G-05). Zerex recommends G-05 coolant from 2001 and older Saabs, and Dex-Cool from 2002 and newer. Never mix green, blue, purple or pink coolants with the orange and red-orange coolants without converting the OAT/NOAT coolant to inorganic inhibitors. Just says Saab-approved coolant, whatever that means. Never mix green, blue, purple or pink coolants with the orange and red. NOAT (Red-orange) type coolants: Caterpillar® Extended Life, Texaco® Extended Life, all brands made with Penray 2798N inhibitor technology, Detroit Diesel® PowerCool® Plus.ĭo not mix other coolants with the above types of coolants. OAT (Orange) type coolants: GM Dexcool, Texaco Havoline, all brands made with.OAT (Orange) type coolants: GM® Dexcool®, Texaco® Havoline®, all brands made with Penray 2798 inhibitor technology, Prestone® Extended Life.The red coolant on the other hand is an IAT (inorganic acid technology) that is considered to be more conventional but still longer lasting than some other coolants on the market. The pink coolant is an OAT (organic acid technology) that typically has a longer service life. The following are known to be compatible with each other and may be mixed without affecting the fluid’s performance. No, Toyota Pink Coolant is not just premixed Red. Various brands of OAT and NOAT coolants have been reviewed. I doubt this is true but at the same time. Some also say online that the orange dye will eventually break down after heat cycling and become pink. He told me he had to flush the radiator because I had added a different color antifreeze to my cooling system. Many months ago, my trusted mechanic was making repairs to my 1995 Chevy Lumina. Personally I wouldn't worry about it, the change of hue will be very slight since there are 10+ quarts/litres of coolant in the whole system. Dear Tom and Ray: I have a question about antifreeze. OAT and NOAT coolants also have been shown to have service life inferior to modern inorganic extended service interval (ESI) coolants. You probably need a little more than half a quart/litre. Dex-Cool is vastly superior to conventional coolants, which use silicates, phosphates, borates, nitrites, nitrates, and amine additives to eliminate corrosion. The term was found to be trademarked, and should not be used. Dex-Cool is an Ethylene Glycol based high performance coolant that contains unique corrosion inhibitors, which are different from anything else on the market. These coolants are sometimes referred to in the field as “Long Life” coolants. Many customers have expressed a desire to use various brands of OAT and/or NOAT antifreezes or coolants. 98.002: Nitrited Organic Acid (NOAT) and Organic Acid (Dexcool) Compatibility Introduction:
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