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500, 472, 425, 368 Discussion, anti-freeze in Cadillac Engine Discussion; what's the correct type or brand of anti-freeze to use in my 80. dev.368 (24,000 miles) when I refill it ...
  1. #1
    creeker is offline Cadillac Owners Connoisseur
    Automobile(s): 1992 eldorado. 2007 dodge magnum hemi r/t
    Join Date
    Nov 2005
    roberts creek b.c. canada


    what's the correct type or brand of anti-freeze to use in my 80. dev.368
    (24,000 miles) when I refill it after draining system?, is it also good to add a conditioner or additive? tnx

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  3. #2
    davesdeville's Avatar
    davesdeville is offline Banned
    Automobile(s): 1995 ETC, 75 Deville, Cad500 powered 73 Apollo, 94 Mark VIII
    Join Date
    Aug 2003
    Albuquerque, NM

    Re: anti-freeze

    Regular 50/50 green coolant will be fine.

  4. #3
    472's Avatar
    472 is offline Cadillac Owners Fanatic
    Automobile(s): 55 60S, 81 DeVille (Diesel), 83 Coupe (507), 84 Wood (425)
    Join Date
    Dec 2004

    Re: anti-freeze

    Just use good 'ol Glycol based antifreeze/coolant (w/water of course). Don't bother with any "additives" as your cooling system/engine I'm sure are fine.

    24K on a 1980 car.... SWEEEET!

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