Dirty oil sitting in recessed area of LIM......why??
#11
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Originally Posted by bill buttermore
Originally Posted by reb
The Prestone formula for Dex-Compatible/yellow mixes with any is not the same. I trust that Prestone tweaked the formula to make is safe.
Ethylene Glycol
Diethylene glycol
Potassium 2-ethylhexanoate
What is the difference if they're the same composition?
#12
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Potassium 2-Ethyl hexanoate is an ingredient found in Dex-Cool but not listed on Dex-Compatible or yellow mixes with anything. The above example you listed is the formula for Dex-Cool. What brand of coolant did you read these ingredients from?
The only difference I can tell so far between yellow mixes with anything and Dex-Compatible are extra corrosion additives in the Dex-Compatible. To meet the GM spec for Dex-Cool, Prestone blends in these anti-corrosive additives. Thus making the dex-compatible coolant mixeable with original Dex-Cool and other Dex-Compatible coolants. What these additives are, I have no idea. Does it make the product unsafe for gaskets, radiators, water pumps etc.? I haven't had any problems at all, but I maintain my car very well.
The only difference I can tell so far between yellow mixes with anything and Dex-Compatible are extra corrosion additives in the Dex-Compatible. To meet the GM spec for Dex-Cool, Prestone blends in these anti-corrosive additives. Thus making the dex-compatible coolant mixeable with original Dex-Cool and other Dex-Compatible coolants. What these additives are, I have no idea. Does it make the product unsafe for gaskets, radiators, water pumps etc.? I haven't had any problems at all, but I maintain my car very well.
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