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Old 07-19-2013, 10:25 PM   #30
clinebarger
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Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
Re: Modern Engine Swaps: Dexcool or Old School?

Quote:
Originally Posted by volksworld View Post
ok...but did he bother to explain WHY its better? I kinda doubt anyone working for GM would be told the stuff sucks by the people who make it
OAT Extended Life Coolant lasts longer, No Silicate to drop out of the coolant....So you don't have to Flush the sediment out when it comes time to change it.

IAT = Inorganic Additive Technology......Silicate (Large amounts) is the primary corrosion inhibiter & is a better faster acting additive, But VERY short lived because of the Silicate dropping out of suspension over time. Conventional Green Coolant.

OAT = Organic Acid Technology......Silicate Free, Organic Acids take place of Silicate as the primary corrosion inhibitor.
Dexcool & other OAT coolants.

HOAT = Hybrid Organic Acid Technology......Small amounts of Silicate(Hybrid) & Organic Acid to control corrosion.
Zerex G-05 Yellow coolant. There are some G-05 HOAT coolants that are orange, John Deere G-05 is green.
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