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engine bad on oil

This is a discussion on engine bad on oil within the General Help forums, part of the LSx Technical Help Section category; my 99 trans am is sucking up about a qourt of oil every 3 weeks i heard that the 98-00 ...

  1. #1
    infantryman tingo99's Avatar
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    Unhappy engine bad on oil

    my 99 trans am is sucking up about a qourt of oil every 3 weeks i heard that the 98-00 models had problems with intakes but can anyone tell me what to do? and there is no signs og oil leaks anywhere on the block

  2. #2
    Nitrous Tuner LS2Tuner's Avatar
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    You need to SeaFoam your motor!!!

    How much oil does your LS1 burn?

    Seafoam Question

    A catch can after you SeaFoam will also help.

    What kind of oil have you been running?

    WELCOME!
    Don't be afraid of the bottle!!! Be afraid of your tune!!!

  3. #3
    infantryman tingo99's Avatar
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    im running 5-30 right now but im going synthetic next oil change i just bought the about 2 months ago with 70000 miles

  4. #4
    Nitrous Tuner LS2Tuner's Avatar
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    There are MANY synthetics out there and some are SHIT!!!

    I would highly recommend you order a filter and oil from AMSOIL.
    If you don't go that route I would buy a K&N filter and the Penzoil Platinum.

  5. #5
    infantryman tingo99's Avatar
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    i heard mobil 1 is really good

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    moble 1 is good, i run castrol full synthentic but like ls2tuner said get some amsoil its good stuff

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    Nitrous Tuner LS2Tuner's Avatar
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    Quote Originally Posted by tingo99 View Post
    i heard mobil 1 is really good
    They are NOT what they once were!! Yes they are a ok oil but there are MANY that use alot better base let alone additives.
    For the money Mobil cost you can get MUCH better.


  8. #8
    infantryman tingo99's Avatar
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    is AMSOIL synthetic or just regular man im stuck on this synthetic i just want the best for my car

  9. #9
    Nitrous Tuner LS2Tuner's Avatar
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    It's all synthetic and the best on the market hands down.

    http://www.amsoil.com/Index.aspx

    https://www.amsoil.com/AmsoilLogin/F...CustomerType=3

  10. #10
    infantryman tingo99's Avatar
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    thanks a lot and 5w-30 is fine right cause some say 10 -30

  11. #11
    The Bandit Wesman's Avatar
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    Quote Originally Posted by tingo99 View Post
    thanks a lot and 5w-30 is fine right cause some say 10 -30
    How many miles on the car?? Either weight is fine, I run 10w-40 full synthetic in mine.

    The oil consumption issue is probably due to the crappy PVC system. The issue is that the LS1 has some ridiculously high manifold vacuum at the PCV port under engine braking, which sucks oil right past the PCV and into the engine. I converted over to breather filters on mine (just put breathers on each PCV port) and the oil consumption normal now.

  12. #12
    O U 8 1 2 Spaz's Avatar
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    try posting in the tech section... better and more responses...

  13. #13
    I lika da Chevy's LETHALxLS1's Avatar
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    Quote Originally Posted by LS2Tuner View Post
    It's all synthetic and the best on the market hands down.

    http://www.amsoil.com/Index.aspx

    https://www.amsoil.com/AmsoilLogin/F...CustomerType=3
    I agree

  14. #14
    infantryman tingo99's Avatar
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    cool ill look into the brething valve

  15. #15
    Member Stricken1's Avatar
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    Quote Originally Posted by LS2Tuner View Post
    It's all synthetic and the best on the market hands down.

    http://www.amsoil.com/Index.aspx

    https://www.amsoil.com/AmsoilLogin/F...CustomerType=3
    Amsoil use to buy there base stock from Mobil...Mobil lost the factory when Katrina hit....If you think Mobil is not worth it I can assure you Amsoil is no better.

  16. #16
    Member Stricken1's Avatar
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    Quote Originally Posted by LS2Tuner View Post
    You need to SeaFoam your motor!!!

    How much oil does your LS1 burn?

    Seafoam Question

    A catch can after you SeaFoam will also help.

    What kind of oil have you been running?

    WELCOME!
    Seafoam wont do anything for oil consumption...odds are its the rings and you are burning the oil. I bought a catch can and it helps but it wont solve the problem...I go through the same amount, maybe a little less using 10w30 syn. I also think seafoam is hard on the seals and instead of buring the oil it will start leaking on your driveway.

  17. #17
    Nitrous Tuner LS2Tuner's Avatar
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    Quote Originally Posted by Stricken1 View Post
    Seafoam wont do anything for oil consumption...odds are its the rings and you are burning the oil. I bought a catch can and it helps but it wont solve the problem...I go through the same amount, maybe a little less using 10w30 syn. I also think seafoam is hard on the seals and instead of buring the oil it will start leaking on your driveway.
    Well I have to strongly disagree. Due to the nice oil consumption in the intake charge it makes the ring lands get packed with carbon and oil which makes the rings stick. So by sucking the SeaFoam it breaks down all the shit in the ring lands. I haven't had any issues with oil leaks! Maybe if you were dumb enough to dump a whole can in the oil.......

  18. #18
    Senior Member INMY01TA's Avatar
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    Quote Originally Posted by LS2Tuner View Post
    It's all synthetic and the best on the market hands down.

    http://www.amsoil.com/Index.aspx

    https://www.amsoil.com/AmsoilLogin/F...CustomerType=3
    The Amsoil XL line is group 3. Not really synthetic.
    Quote Originally Posted by tingo99 View Post
    i heard mobil 1 is really good
    Mobil 1 is group 3 it appears as well. A really thin one at that. My car used to consume oil when I used Mobil one. Switched to Redline and that stopped. I use German Castrol (thick 30 wt) now, no consumption issues.

  19. #19
    infantryman tingo99's Avatar
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    alright so just get use to putting oil in it.and amsoil 10w-30 would be fine im going with that

  20. #20
    Member Stricken1's Avatar
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    Seafoam will not do anything to break down hard carbon. All seafoam does is make a smoke show. I have tried it myself....AUTORX is a better way to go and the catch can I use traps a few ounces of oil not a few quarts.

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