4.9l Minimum octane requirements?
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Results 1 to 9 of 9
Cadillac Seville / Cadillac Eldorado Forum Discussion, 4.9l Minimum octane requirements? in Past Cadillac Vehicle Discussion; I am think of buying a 92 Eldorado and would like to know what it is? 87 or 91? Also ...
  1. #1
    ltdltc's Avatar
    ltdltc is offline Cadillac Owners Fanatic
    Automobile(s): 2010 CTS4 Performance Sport Wagon
    Join Date
    Jun 2003
    Location
    MA
    Age
    33
    Posts
    438

    4.9l Minimum octane requirements?

    I am think of buying a 92 Eldorado and would like to know what it is? 87 or 91? Also are the trannies good on these cars? TIA

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    Night Wolf's Avatar
    Night Wolf is offline Cadillac Owners 10000+ Posts
    Automobile(s): Unicycle
    Join Date
    Mar 2003
    Location
    Where I park it
    Posts
    11,009

    Re: 4.9l Minimum octane requirements?

    they require premium. They have no knock sensor to retard the timing, so it would be wise to run the good stuff..... you may be able to get away with mid-grade if you don't hear any pinging, but for the slight differnce between the 2, just go with the better.

    The tranny is the 4T60E electronically controlled..... I know my '93 DeVille came with a tranny cooler stock, that is a very good thing.... I would say they are pretty good... they are 4 speed.

  4. #3
    ltdltc's Avatar
    ltdltc is offline Cadillac Owners Fanatic
    Automobile(s): 2010 CTS4 Performance Sport Wagon
    Join Date
    Jun 2003
    Location
    MA
    Age
    33
    Posts
    438
    Thread Starter
    Thanks, Thats what I needed to know!

  5. #4
    Night Wolf's Avatar
    Night Wolf is offline Cadillac Owners 10000+ Posts
    Automobile(s): Unicycle
    Join Date
    Mar 2003
    Location
    Where I park it
    Posts
    11,009
    I know on the dash of my car, and on the fuel door, it says "premium unleaded only"

  6. #5
    JerseyGirl's Avatar
    JerseyGirl is offline Cadillac Owners Enthusiast
    Automobile(s): 94 Fleetwood Brougham
    Join Date
    Feb 2003
    Location
    Nashville...but in my head, Jersey.
    Age
    43
    Posts
    857

    Re: 4.9l Minimum octane requirements?

    Quote Originally Posted by ltdltc
    I am think of buying a 92 Eldorado and would like to know what it is? 87 or 91? Also are the trannies good on these cars? TIA
    I always use the best in my 92 Eldo..and my tranny has been great thus far.

  7. #6
    elwesso's Avatar
    elwesso is offline Cadillac Owners Master
    Automobile(s): 2005 CTS-V, 1994 Infiniti Q45
    Join Date
    Jan 2003
    Location
    Indiana
    Posts
    7,668

    Re: 4.9l Minimum octane requirements?

    You didnt buy a cadillac to cheap out on crappy gas..... Put in the best money can buy!!!!

    The trannies <WITH PROPER MAINTENANCE> can last easily the life of the car..... GM makes some of the best and longest lasting trannys around!

  8. #7
    Ralph's Avatar
    Ralph is offline Cadillac Owners 10000+ Posts
    Automobile(s): Cadillac
    Join Date
    Mar 2003
    Location
    Saskatchewan, Canada
    Posts
    16,069

    Re: 4.9l Minimum octane requirements?

    Quote Originally Posted by elwesso
    You didnt buy a cadillac to cheap out on crappy gas..... Put in the best money can buy!!!!

    The trannies <WITH PROPER MAINTENANCE> can last easily the life of the car..... GM makes some of the best and longest lasting trannys around!
    I agree, but I think the tranny on my 70 Plymouth in high school was the toughest! It clunked, and rattled, the windows leaked, and you could never get the mud out from the doors! That car would not DIE!!!

  9. #8
    elwesso's Avatar
    elwesso is offline Cadillac Owners Master
    Automobile(s): 2005 CTS-V, 1994 Infiniti Q45
    Join Date
    Jan 2003
    Location
    Indiana
    Posts
    7,668

    Re: 4.9l Minimum octane requirements?

    Its sad, when you like the car, it dies.... when you want it to die, it lives, forever!!

  10. #9
    Ralph's Avatar
    Ralph is offline Cadillac Owners 10000+ Posts
    Automobile(s): Cadillac
    Join Date
    Mar 2003
    Location
    Saskatchewan, Canada
    Posts
    16,069
    Just put the best high octane gasoline you can into it. You guys south of the border don't pay much for gas anyway!

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting