1969 - 472 ci gasoline required

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500, 472, 425, 368 Discussion, 1969 - 472 ci gasoline required in Cadillac Engine Discussion; What gasoline was originally required in the 1969 - 472 CI engine . Was it hi oct. leaded or unleaded ...
  1. #1
    walex is offline Cadillac Owners Member
    Automobile(s): none
    Join Date
    Aug 2011

    1969 - 472 ci gasoline required

    What gasoline was originally required in the 1969 - 472 CI engine . Was it hi oct. leaded or unleaded ?

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  3. #2
    drmenard is offline Cadillac Owners Connoisseur
    Automobile(s): 95 fleetwood 81 deville
    Join Date
    May 2003

    Re: 1969 - 472 ci gasoline required

    In 1969 most all gas was leaded.. I remember that AMACO was low lead..So it called for leaded gas..And being a high compression engine it needed HI test...These motors can be tuned to run on 93 octane.. No need for any additives...

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