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Dex Cool AF 850 not recommended, why??

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Old May 28, 2018 | 03:48 PM
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Default Dex Cool AF 850 not recommended, why??

Went on the local auto parts place and looked up antifreeze/coolant for my 2004 LS1.
Their site stated Prestone AF850 "does not fit" my car. AF 2000 or AF 2001 was the Prestone recommendation.
Anyone know why? The two recommendations are yellow, not orange. The AF 850 is Orange colored and the orange color is the one in my car.
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Old May 28, 2018 | 03:53 PM
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Was it Advanced or Autozone? I honestly would not trust their computers as far as fluid recommendations go. I worked at a parts store for 5 years and it’s amazing how much incorrect information we would come across.
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Old May 28, 2018 | 03:58 PM
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Originally Posted by quicksilver20
was it advanced or autozone? I honestly would not trust their computers as far as fluid recommendations go. I worked at a parts store for 5 years and it’s amazing how much incorrect information we would come across.
az.
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Old May 28, 2018 | 04:32 PM
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I wouldn't trust the AutoZone computers either. The AF2000 or AF2100 will work, but they aren't direct replacements for DexCool™, they are "universal long life" coolants.



AF850 is good for DexCool™ vehicles if you want to pay almost twice as much for the coolant.


AF888 plus a gallon of distilled water (for $0.82 at Walmart) will give you two gallons of mixed coolant for a much better price. If you're in warmer climates, add 1.5 to 2 gallons of distilled water for better summer cooling (H20 transfers heat better than antifreeze), but be aware you're limiting the freeze protection. 2:1 water to antifreeze will freeze below about 0°F. That's good enough for Florida, but maybe not for Virginia. 1.5:1 water to antifreeze is good to about -15°F, and would probably work for you.
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Old May 29, 2018 | 10:31 AM
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Moved to C5 Tech.
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