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i'm afraid i have bad news... it's about my suburban

Discussion in 'The Garage' started by muddysub, Dec 1, 2002.

  1. muddysub

    muddysub 1 ton suburban status Staff Member Moderator GMOTM Winner

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    i\'m afraid i have bad news... it\'s about my suburban

    i don't think my engine will last too much longer. /forums/images/graemlins/frown.gif 2 weekends ago i added 2 qts, last weekend 1.5qts, this weekend 1qt. she's got 157,000mi on her and i don't know if it'll make it to 170,000 at this rate. no leaks and it's not burning bad, no smoke at all. anything i could do? run heavier oil maybe? /forums/images/graemlins/frown.gif

    how much would i have to spend to build this motor up into a 383 stroker? i know about all the parts but what about the machining? /forums/images/graemlins/confused.gif
     
  2. Chris Demartini

    Chris Demartini 1/2 ton status

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    <font color="blue">If your going to build a motor, go big block /forums/images/graemlins/thumb.gif
     
  3. zakk

    zakk 1/2 ton status

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    if your at those kind of miles, i would be runnign 20w50. i was in my 227k SBC 400
     
  4. muddysub

    muddysub 1 ton suburban status Staff Member Moderator GMOTM Winner

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    20w50? really??? /forums/images/graemlins/shocked.gif i'm runnin 10w30 right now.
     
  5. jc71355

    jc71355 1/2 ton status

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    That's what I'm running in my 195k 350.

    Sorry to hear about the motor going. When mine goes I would like to do a 383 with 9.5 compression and some Vortec or other aluminum heads.
     
  6. Pure Insanity

    Pure Insanity 1/2 ton status

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    This MAY help some...I had a Camaro a long time ago that used oil unless I used 1 specific type of oil, put anything else in and it would smoke like mad. For some reason this oil helped, it was Kendall Nitro 70. I havent looked for it in prob 12 years so I am not sure it even still exists. If you can find it, do an oil change and fill it w/ this stuff, Ill almost bet it helps. But always make sure its what you put in it after or itll do the same ole thing.

    I was over 100 miles from home and had to add some oil and I couldnt find any, I put straight 50 weight in AND added motor honey, still smoked coming home. Changed the oil and it stopped again.

    It still smoked and used some...... dont get me wrong this isnt some miracle cure type crap, but it worked for me.

    If you cant find it, ask the parts store about it and see if they can get it. If nothing else run a straight 50 weight.
     
  7. muddysub

    muddysub 1 ton suburban status Staff Member Moderator GMOTM Winner

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    well thanks guys i think i'll change my oil next week. oh and i wish i had posted this last week cuz i bought a 12 pack of 10w30 last week. /forums/images/graemlins/frown.gif
     
  8. ChevyDrivnRdneck

    ChevyDrivnRdneck 1/2 ton status

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    I used valvoline 60 in my 72. it didn't leak as much either
    I had around 200k on it when I changed the motor.
     
  9. chevyfumes

    chevyfumes Court jester

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    Would anyone care to break down oil weights and when you should run them in what temps and what milage engines. It wouldn't have to be word of god stuff , just a basic idea of what your reasoning is...
    I'm at about 145+ on my 350, it's generally in the high 30's to mid 80's where I live depending on the time of year....

    ( MR. Hand voice) Anyboby... Any one????

    /forums/images/graemlins/grin.gifMight make for a good sticky some day... /forums/images/graemlins/thumb.gif
     
  10. nofeartruckin00

    nofeartruckin00 1/2 ton status

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    I wouldn't hesitate to go 20W-50. I run it in the summer (anything above 60). As soon as fall comes rolling around, and the temps stay below 50, i go a little thinner with 10W-40. Running the oil weights this way, i only use 1/2 quart every 3000 miles on my 150,000 motor.
     
  11. Stickseler

    Stickseler 3/4 ton status

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    Before I changed my motor I started using the Valvoline hi mileage oil in the red can. I used it for about 6000 miles before I changed my motor and it quit using oil. The only reason I changed my motor was I figured at 226,000 it was getting tired /forums/images/graemlins/smile.gif and when they took it out and tore it apart they said it was still in prety good shape /forums/images/graemlins/grin.gif
     
  12. muddysub

    muddysub 1 ton suburban status Staff Member Moderator GMOTM Winner

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    dang i run 10w40 in the summer (temps from 85 to 120) and 10w30 in the winter (temps from 35 to to 85) guess that'll switch to 20w50 and 10w40. thanks for the help guys i'll start runnin 20w50 now. or since it's winter time should i just go back up to 10w40? as you can see it don't get that cold here.
     
  13. Pure Insanity

    Pure Insanity 1/2 ton status

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    I live in Fla, so I run 20-50 yr round, and I have a new motor. Well it was new like 8000 miles ago I should say. When PI gets up in mileage Ill run a straight 50 in it.

    Up north in a colder climate, during the winter Id say 5-20 or 10-30.
     
  14. Pure Insanity

    Pure Insanity 1/2 ton status

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    Look for that Nitro 70 stuff. Worked for me. Give it a try.
     
  15. MOABDADC22

    MOABDADC22 1/2 ton status

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    </font><blockquote><font class="small">In reply to:</font><hr />
    If your going to build a motor, go big block

    [/ QUOTE ] Unless you want a high revving engine (not necessary for wheeling and cruising)................ Build a BIG BLOCK /forums/images/graemlins/usaflag.gif
     
  16. 89GMCSuburban

    89GMCSuburban 1/2 ton status

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    Best thing for oil in ANY mileage engine is to run the thickest possible corresponding to the temperatures. For you, man, I'd run 20w50 in summer, 10w40 in winter...that's what I do and I have 207,000 miles!
    Switch to 10w40 at your next change, and when it starts to get above 50 degrees, switch to 20w50.
    Better yet, I bet you didn't know Valvoline sells straight 50w oil!
    Also, next oil change, try dumping in some of that Engine Restorer stuff in the can, worked wonders on my engine...
     
  17. 4x4Freak

    4x4Freak 1/2 ton status

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    That Kendall Nitro 70 is still being made. We carried it at Autozone when I worked there.
     
  18. Z3PR

    Z3PR Banned

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    I had a 454 in the 72 K5 I used to have a few years back. It had bad valve guides and smoked like a muddafawka, I went through 3 cases of 10/40 in a month. Switched to 20/50 and only one case in a month. Yes, I did rebuild that motor !!!!! Solved all the problems !!!!!!
     
  19. scrappyk5

    scrappyk5 1/2 ton status

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    i use 10w40 during the winter ans 20/50 in the summer.

    watch what thickness you use in the winter cause on
    cold mornings , that stuff is as thick as molasses.and
    your oil pump will have a hard time pulling it up . plus
    it will not move thru your bearing jurnals very well.
     
  20. afroman006

    afroman006 1/2 ton status

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    Re: i\'m afraid i have bad news... it\'s about my suburban

    Dang ya bunch of woosies . My 350 has 270,000 on it and I still use 10W30 /forums/images/graemlins/eek.gif. And we're between 80-105 in the summer and 40-75 in the winter. It smokes a little when I first start it but after it warms up its no problem. Just food for thought...
     

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