Fuel Injection Cleaning?
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HT4100 4.1, 4.5, 4.9 Discussion, Fuel Injection Cleaning? in Cadillac Engine Technical Discussion; On my 92 deville, i have 90k on it, and it runs fine to me, is the kind of fuel ...
  1. #1
    MARK2995 is offline Cadillac Owners Member
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    Fuel Injection Cleaning?

    On my 92 deville, i have 90k on it, and it runs fine to me, is the kind of fuel injection cleaning the garage offers really worth it? Or am i ok just putting some cleaner in the tank every now and then?

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  3. #2
    cadillac_al is offline Cadillac Owners Connoisseur
    Automobile(s): Cadillac 78 Seville, 78 Coupe de Ville, 92 Sedan de Ville
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    Re: Fuel Injection Cleaning?

    I would just use Techron once in a while.

  4. #3
    HUF's Avatar
    HUF
    HUF is offline Cadillac Owners Connoisseur
    Automobile(s): 1995 FWB 100,*** miles CURRENT. 1991 Seville 175,000 SOLD
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    Re: Fuel Injection Cleaning?

    If it runs okay, leave it alone.

  5. #4
    ehall's Avatar
    ehall is offline Cadillac Owners Connoisseur
    Automobile(s): 1985 Sedan DeVille
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    Re: Fuel Injection Cleaning?

    Dumping a bottle of Lucas fuel cleaner into your gas tank with every oil change doesn't hurt anything and it makes a noticeable difference to me

  6. #5
    pompste is offline Cadillac Owners Connoisseur
    Automobile(s): 1995 SEDAN DEVILLE-4.9 & 1978 SEDAN DEVILLE-425
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    Re: Fuel Injection Cleaning?

    You could also add a full can of SEAFOAM to a full tank of gas every now and then.Some people add a full can of seafoam when you get down to a 1/4 tank for maximum cleaning of fuel injectors.

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