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Thread: best engine oil

  1. 07-16-2006, 06:30 PM #1
    sd1971
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    black
    2001 t/a

    best engine oil

    i have heard that gc 0w-30 or m1 5w-40 were good oils for the ls1. i am wondering what is the best oil for the ls1 and start up engine noise?
    Last edited by sd1971; 07-16-2006 at 06:33 PM. Reason: miss spelling
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  2. 07-16-2006, 07:51 PM #2
    GatorSS
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    Light Pewter Metallic
    2000 Camaro SS M6

    Read the "I'm an oil junkie" post.
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  3. 07-17-2006, 07:02 PM #3
    sunsetorangess
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    Im thinkin that noise will be there until either you get use to it or get rid of the ls1.
    J
    2001 SS, Its not the car its the Driver that matters....
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  4. 07-17-2006, 07:38 PM #4
    Wesman
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    1998 Trans Am WS6

    Mobil 1 Synthetic is excellent oil.

    Thats all I use in my car, and its been great
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  5. 07-18-2006, 04:03 AM #5
    SteveC
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    SOM
    2001 Z28 (Sara)

    I changed from Mobil 1 to Royal Purple 10W-30, and within 1K miles my piston slap has all but gone away. I live in a very warm climate.

    SteveC
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  6. 07-21-2006, 11:33 AM #6
    va2001ss
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    2001 Black SS #5228

    I switched from M1 5w30 to GC 0w30 and the valve train was noticeably quieter. Better oil pressure as well when it's hot with the GC being on the high end of 30w and the M1 on the low end for 30w.
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  7. 07-21-2006, 11:43 AM #7
    ss~zoso~ss
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    i'm running royal purple, anything that is full synthetic is considered GOOD
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