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Northstar Engines and System Technical Discussion Discussion, High Mileage Northstar Thread: Who can beat me? in Cadillac Engine Technical Discussion; correction, it is now july 08 and I have 197000 and still beautiful! Original motor and trans....
  1. #106
    fristim is offline Cadillac Owners Fanatic
    Automobile(s): 98 Concours 212,000 orginal motor,trans
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    Re: High Mileage Northstar Thread: Who can beat me?

    correction, it is now july 08 and I have 197000 and still beautiful! Original motor and trans.

  2. #107
    fristim is offline Cadillac Owners Fanatic
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    Re: High Mileage Northstar Thread: Who can beat me?

    Quote Originally Posted by fristim View Post
    98 Concours 149000 and still beautiful!!
    correction it now has 198000 its july 07. Original motor and trans!

  3. #108
    ronscantlin's Avatar
    ronscantlin is offline Cadillac Owners Member
    Automobile(s): 98 Cadillac Concourse Deville
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    Re: High Mileage Northstar Thread: Who can beat me?

    I've currently got right at 270k. I just blew a head gasket, but threw down $7 at Advance Auto for some K&W block seal (instead of $2500) and am still rolling. There's a trick to the block seal though.... DON'T follow the directions.

  4. #109
    CadillacSTS42005's Avatar
    CadillacSTS42005 is offline Banned
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    Re: High Mileage Northstar Thread: Who can beat me?

    what did you do?

  5. #110
    z06bigbird is offline Cadillac Owners Connoisseur
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    Re: High Mileage Northstar Thread: Who can beat me?

    Had a red 97 SDV. Just sold it with 27,775 miles on it. Great car. Sometimes I put 3 to 4k miles on my cars per year. Bought a CTS. Also have an 86 Monte Carlo SS that I have driven about 4k miles in 10 years. Looks and runs as well as my new CTS.

  6. #111
    ronscantlin's Avatar
    ronscantlin is offline Cadillac Owners Member
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    Re: High Mileage Northstar Thread: Who can beat me?

    Quote Originally Posted by CadillacSTS2003 View Post
    what did you do?
    TOTALLY flushed the coolant system...I MEAN TOTALLY! (if you don't, you'll have a reaction with the block seal stuff that will clog your radiator). Then, added the block seal and toped off with water. Run this way hard for minimum 500mi. (make sure you're in an above-freezing climate durring this time). You can leave it in as long as you wish. After 500mi., drain, flush, rinse, repeat and then put your coolent in. You should get another few years out of it. I read it on the internet ( I think "The Honest Mechanic") and it works.

  7. #112
    capn's Avatar
    capn is offline Cadillac Owners Fanatic
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    Re: High Mileage Northstar Thread: Who can beat me?

    Quote Originally Posted by RLLOVETT View Post
    94 Eldo with 123k and a mild oil leak but it's still fun to feel and hear it wind up to to 6k and pass the ricers and mustangs...

    Heh yup

    1994 ETC here with 150,000 + miles
    Small oil leak
    replaced alternator
    general maintenace

    other than that shes original

  8. #113
    pops97deville's Avatar
    pops97deville is offline Cadillac Owners Member
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    Re: High Mileage Northstar Thread: Who can beat me?

    high mileage 198000 and finally in pain 1997 deville got a tranny code but not slipping got abs light and still stopping oil leak/ or coolant and the pain seems to be growing will keep informed

  9. #114
    tominnc is offline Cadillac Owners Member
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    Re: High Mileage Northstar Thread: Who can beat me?

    93 seville with 250k. Just got it as a freebie. No real problems except the previous owner jury rigged the electrical system to heck and back

  10. #115
    MOREMILES is offline Cadillac Owners Member
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    Re: High Mileage Northstar Thread: Who can beat me?

    My friends northstar has 180K on it and a set of headgaskets.

    I have a 94 DeVille with the 4.9 and 224,234 miles, 3000 mile oil changes and 1 set of spark plugs, wires and cap, other than that all ORIGINAL.

  11. #116
    cadillacmike68's Avatar
    cadillacmike68 is offline Cadillac Owners Connoisseur
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    Re: High Mileage Northstar Thread: Who can beat me?

    My 2000 Eldorado ESC convertible has 104,700 miles. Original engine. It was seeping a bit of oil but that it nearly 100% stopped. no internal engine work, and other than crank sensors and front motor mount - no large scale accessory replacements either. Spark plugs replaced at 104,000 miles. This car is a real head turner being a convertible. The crimson pearl paint helps.

  12. #117
    1badcaddy's Avatar
    1badcaddy is offline Cadillac Owners Fanatic
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    Re: High Mileage Northstar Thread: Who can beat me?

    My Bad 2 that Bone 94' STS has about 171k and runs like new. I had to have a bunch of coolant parts replaced and did a full tune up and coil pack replacement along with a new ECU. Now it is a new car.

  13. #118
    Drparj is offline Cadillac Owners Member
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    Re: High Mileage Northstar Thread: Who can beat me?

    Got a 99 Seville sls with 173k

  14. #119
    Machster's Avatar
    Machster is offline Cadillac Owners Member
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    Re: High Mileage Northstar Thread: Who can beat me?

    I have a 2000 STS with 322,000 km. Did I win, did I win? My STS is all orig. Burns "little" oil, one litre/2500 km. Changed at 3000 miles. Yes I do TRAMP it and keep the carbon out of her. I Love this car! Best I've owned, will be replaced with ... another STS! One thing I don't like, the "Service Suspension System" dic warning and beep till you push the button. Dealer said is a common problem in shock struts, the struts still work great and don't "need" replaced except for the warning. Replacing will be $$$$

  15. #120
    Machster's Avatar
    Machster is offline Cadillac Owners Member
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    Re: High Mileage Northstar Thread: Who can beat me?

    BTW, does anyone know how to bypass/cancel the Service Suspension error?

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