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Old 06-07-2001, 07:29 PM   #1
rogerk
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Default coolant, green phosphate free.

Where can I purchase green phosphate free coolant with out going to Saturn and paying 16 big bucks for a gallon of the stuff?
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Old 06-07-2001, 08:06 PM   #2
91SL2
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I wrote to saturn regarding coolant,and this is the reply

"Thanks for writing Saturn! Saturn Corporation recommends you use
Non-Phosphate Ethylene (green in
color) to be mixed 50%(distilled water is best) water, 50% coolant. We
can not recommend or endorse
any other product.

For model years 1997-2001 Saturn recommends DEX-COOL (silicate-free)
coolant (red orange in color).
The water and coolant mix is the same as above.

If you need any additional information or assistance, please do not
hesitate to e-mail us again or
call us at 1-800-553-6000, option 3.

Thanks again,

Sheron Hobgood
Saturn Customer Assistance Center
qveh/acc

My car is an 91sl2 so i went with prestone,they do not say in the reply that it must be a saturn product.
hopes this helps
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Old 06-07-2001, 09:26 PM   #3
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1994 SC2
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Don't believe that. I put the dexcool in my 94. I completely cleaned out the system first, then mixed it 50/50 with distilled water. I think you can get phosphate free at any parts store.
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Old 06-07-2001, 11:13 PM   #4
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The key on the "green" anti-freeze is it MUST be NON-PHOSPHATE...check the label of what you're buying. It must also be Ethylene-Glycol (you can't use the non-toxic propylene glycol). Regular Prestone is NOT non-phosphate, so careful! Their extended life anti-freeze is, I believe, though so that will work. You can use the "extended drain" anti-freeze (like Dex-Cool) in a car that had the green stuff originally, I believe - just don't go with the extended drain interval, since it's "contaminated" with the non-extended drain stuff already (nothing you can do 'bout that). Just check the label and confirm it is ethylene glycol first.
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Old 06-25-2001, 12:58 AM   #5
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You should ask some questions about the Dex-cool in the 94. I wanted to use it in a 92 and a 95 but was told by the dealer that the factory original hoses would be eaten through by the Dex-cool because they were not designed to use it. If ALL coolant carrying hoses had been replaced it would be OK, because the new replacement hoses would work with either anti-freeze. hamish
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Old 06-25-2001, 01:24 AM   #6
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I put the dex cool in my car in Novemeber I haven't seen a problem yet, I have noticed it running cooler, but thats it. If a hose goes I guess I'll just buy both and some heater lines. And add some more dexcool. thanks for the info hamish.
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Old 06-25-2001, 06:45 PM   #7
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Re the DEXCOOL. The word I've heard is that DEXCOOL is ok, but the engine must be flushed thoroughly before changing from the ethylene glycol based antifreeze to the DEXCOOL. The different types of coolant and their chemical packages aren't compatible.

From what I've heard, the lifetime of DEXCOOL is extended only if the cooling system remains sealed. If it leaks and you have to replace coolant, the extended service life goes away quickly.
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Old 07-02-2001, 03:20 PM   #8
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If I recall correctly, there are more hoses than just the upper/lower rad and heater hoses that carry anti-freeze, so check the cooling routes before replacing. Possibly the problems I heard about came from a "mixture" rather than a flush and replace, I will see if I am able to find any more information. I am researching NPG+ from Evans Cooling as a replacement anti-freeze. The original NPG worked great in my late Volks GTI. hamish
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