A common beleive is that color of coolant decide what type of coolant it's in there. NOT TRUE.

They have the coolant split up by 5 different main groups.
American,Asian,Europeen,Dexcool and Hybrids.

American style have more Silicates and moderate amount of Phosphates. Asian style is high on Phosphates and no Silicates.
European style have no Phosphates and no Silicates.
DexCool uses organic acids called Carboxylates instead and is Phosphate and Silicate free.
Hybrid style have organic acids and low levels of Silicate but no Phosphate,

He believed that the Hybrid Coolant is the future, because of the alround protection. But it's also more expensive.

The three first are similar but only more or less interchangeable, and they all come in a wide range of colors. Green,Red,Blue and Gold.

He strongly pointed out to the shop owners that if you don't know whats in there, a thourough flush of the whole system is the only way to go, and fill up with new coolant.

Distilled or purified water is not a must, ( only if your water quality is really bad, do you need to use bottled water )

If adding the wrong coolant to a system, you actually shortens the lifespan of the components.

He also talked a lot about Dex Cool, and said that they have found out that leaving the Dex Cool in the car for more than two years, it starts to dissolve plastic parts ( polymerization )

Rumors and hearsaying is that GM is fighting to blame it on everything else but the coolant, and hope that the cars are out of warranty before they start to fail.

Dex Cool works great though if flushed and changed every two years, he pointed out.

Chrysler have starting to use a Hybrid Coolant ( G-05 )that is also orange in color, and many shops top of the Chrysler cars with Dex Cool, which is VERY bad.

We talked a little bit about the new Saab Coolant to, and he gave me an web site to check it out.

I listed it below, click on G48 antifreeze.

posted by 66.134.55...

Zerex/Valvoline coolant

• Went to a Coolant class yesterday, interesting stuff ., Anders, Wed, 23 Oct 2002 11:44:18 <-- Viewing This Message
  • Yeah, there is a lot of confusion about this (+), Vlad, Thu, 24 Oct 2002 17:53:33
  • Thanks, Anders! I guess DexCool is a big No-No, KeithG, Thu, 24 Oct 2002 10:03:23
    • It is blue..., Stephen Goldberger, Thu, 24 Oct 2002 13:57:23
    • Re: Thanks, Anders! I guess DexCool is a big No-No, Anders, Thu, 24 Oct 2002 11:39:02
      • its blue in my '01, JimBlake , Thu, 24 Oct 2002 15:31:47
        • No, the Saab jug have no reference to G48 nor the class, Anders, Thu, 24 Oct 2002 18:45:43
  • *Very* good post. Questions ..., J, Wed, 23 Oct 2002 23:22:23
    • Re: *Very* good post. Questions ..., Anders, Thu, 24 Oct 2002 00:57:59
      • Correction, the new Coolant jug from Saab list specific, Anders, Thu, 24 Oct 2002 11:34:43
        • EXACTLY THE SAME!!!, Stephen Goldberger, Thu, 24 Oct 2002 14:02:28
          • SCUSA, RS , Thu, 24 Oct 2002 15:39:48
      • thank you n/m, J, Thu, 24 Oct 2002 01:16:21
  • Very cool post, thanks. How about Mecedes coolant?, Jim Moncrief, Wed, 23 Oct 2002 16:13:34
    • Does the pale yellow MB stuff say 'G-??'? (nm), JimBlake , Thu, 24 Oct 2002 15:44:38
    • Let me rewrite the column about Hybrid G-05, from my, Anders, Wed, 23 Oct 2002 16:45:01
      • So MB Coolant is directly compatible with Dexcool?, Stephen Goldberger, Thu, 24 Oct 2002 13:44:34
        • Well, according to the guy at the class, they did NOT, Anders, Thu, 24 Oct 2002 15:08:41
  • another question about DexCool?, Jason, Wed, 23 Oct 2002 16:01:20
    • never mind, found it on usenet (explanation inside), Jason, Wed, 23 Oct 2002 16:05:09
      • So Jason, it looks like we need to flush out that ..., J, Thu, 24 Oct 2002 01:11:12
  • More than two years???, Stephen Goldberger, Wed, 23 Oct 2002 14:27:41
    • It's the Coolant that breaks down, and attacks the >>>>, Anders, Wed, 23 Oct 2002 14:54:37
  • Thanks Anders! question?, Jason, Wed, 23 Oct 2002 13:59:10
    • I have to be careful about the very newest Saab's. Need, Anders, Wed, 23 Oct 2002 14:13:12
  • Car & Driver had a small article about this a few ..., Trev, Wed, 23 Oct 2002 12:58:26
  • Jeez Anders, Thanks!, Tony Basile, Wed, 23 Oct 2002 12:45:55
  • Thanks, that is great to know! nm, Chris., Wed, 23 Oct 2002 12:04:42

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