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87 or 92 degree T-stat for my turbo wagon? 850 1995

posted by  Erwin on  Tue Jul 10 01:51 CST 2007
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last visit: Thu Oct 23 10:39 CST 2014
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I'm working on the cooling system and want to replace the thermostat. I see both an 87 degree and a 92 degree model on Groton's site.

Which is correct? I'm in Memphis where the summers are hot and winters are mild.

Thanks,

Erwin

'95 855t, 155,000 miles








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    87 or 92 degree T-stat for my turbo wagon? 850 1995

    posted by  KlausC on  Tue Jul 10 05:22 CST 2007
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    last visit: Fri Oct 24 10:15 CST 2014
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    The difference will not make your engine run hotter or cooler, but it will take longer to heat up with the 87C. That is the temperature when the thermostat opens up and allows the coolant to flow to the radiator.

    You live in a mild climate, so the 87C would make sense. Unless, of course, most of your driving is comprised of short trips, then go with the 92C to get the engine to operating temps sooner.

    Klaus







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    87 or 92 degree T-stat for my turbo wagon? 850 1995

    posted by  Chuck Jaxel on  Tue Jul 10 03:13 CST 2007
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    The temp is usually a personal preference. If you have mild winters you could go with a lower t-stat temp cause you don't need as much heat output in the winter, I believe that 92 is OEM temp, either will work fine in your car.







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      efficiency + mpg also 850 1995

      uid 25912's pic
      posted by  Sven's Maintainer on  Tue Jul 10 04:58 CST 2007
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      last visit: Sun Sep 16 20:44 CST 2012
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      Engine temp also affects overall efficiency and your mpg.
      Assuming Volvo gives you a choice, I'd go with the hotter one for better fuel economy. Unless maybe you drive in the desert or maybe in SoCal.
      --
      Sven: '89 245 NA, 951 ECU, open-front airbox, E-fan, 205/65-15's, IPD sways, E-Codes, amber front corner reflectors, quad horns, tach, small clock. Wifemobile '89 245 NA stock. 90 244 NA spare, runs.







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