I wouldn't over-complicate the problem. Just use a good quality antifreeze. I've used prestone in my older BMW for over 7 years. I change it every 24 months as suggested in the owners manual.

As you probably know, ethylene glycol is the base part of the "antifreeze formula".

I changed the water pump on my BMW as part of the normal maintenance cycle (timing belt change). The new pump has worked fine. I'm sure Bavarian Motors, like SAAB, has a new improved exotic formula, that is "best" and "must" be used.

I sorry, I don't buy it. If your concerned about corrosion, give it a litmus test. Antifreeze lowers the freezing point and raises the boiling point, period.

I have a 99 9-5 SE. My water pump failed at 53K and it wasn't due to the antifreeze.

IF your car is newer, to preserve the warranty, go for the SAAB version, otherwise, consider the alternatives. I've always had good luck (i.e. no corrosion, sludging of the radiator, boil-overs or freeze-ups) with name brand antifreeze.

Good luck and use your best judgement. You picked a SAAB, that says something.

posted by 67.109.1...

• Calling Coolant Consultants/Chemists, Please Help!, Calvin, Thu, 30 Sep 2004 18:32:30
  • Use old Prestone or not?!, Larry in PA, Fri, 1 Oct 2004 07:57:18
    • also - your Prestone shelf-life has prob. expired. n/m, 9to5, Fri, 1 Oct 2004 08:40:45
      • Re: also - your Prestone shelf-life has prob. expired. n/m, Larry in PA, Fri, 1 Oct 2004 09:03:40
        • Re: also - your Prestone shelf-life has prob. expired. n/m, 9to5, Fri, 1 Oct 2004 19:30:50
          • oops, now that I read the 2nd link......, 9to5, Fri, 1 Oct 2004 19:35:47
            • Re: oops, now that I read the 2nd link......, Larry in PA, Sat, 2 Oct 2004 09:05:05
    • Re: Use old Prestone or not?!, 9to5, Fri, 1 Oct 2004 08:37:32
  • Re: Calling Coolant Consultants/Chemists, Please Help!, TOM, Thu, 30 Sep 2004 23:09:13 <-- Viewing This Message
    • Re: Calling Coolant Consultants/Chemists, Please Help!, Calvin, Fri, 1 Oct 2004 06:21:45
      • PS: Volvo brand 'green' exended life =, 9to5, Fri, 1 Oct 2004 08:29:56
  • Re: Calling Coolant Consultants/Chemists, Please Help!, 9to5, Thu, 30 Sep 2004 18:52:16
    • THANKS! Where do you get your G-05?, Calvin, Thu, 30 Sep 2004 19:06:24
      • Re: THANKS! Where do you get your G-05?, 9to5, Thu, 30 Sep 2004 19:18:12
        • W-M cuts both ways for sure! NAPA it is....thanks. n/m, Calvin, Thu, 30 Sep 2004 19:40:45

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