Thread: put 5w-30 in 10w-30

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  1. #1 put 5w-30 in 10w-30 
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    1998 gt.

    got an oil change today...as i was leaving i notice they put 5w 30 instead of 10w 30. I drove 3 miles..should I be worried?
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  2. #2 Re: put 5w-30 in 10w-30 
    I live here. brandonl2000's Avatar
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    Nope. Read your manual. Either will work, depending on temperatures where you live...one can be better or the other.
    2003 Grand Prix GTP-3.5 setup, sold it, miss it
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  3. #3 Re: put 5w-30 in 10w-30 
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    checked my manual..am i misled by the chart to think i'd be better with 10w-30?
    I'm in KS and the weather in summer here has been like 45~94F.
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  4. #4 Re: put 5w-30 in 10w-30 
    Donating User Odi's Avatar
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    ur fine. i drove on 5w-30 last summer without issues.
    2001 GT Special Edition - 208k miles, junkyard status. Part out in progress.
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  5. #5 Re: put 5w-30 in 10w-30 
    GTX Level Member bps02gtp's Avatar
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    gotta be a jiffy lube/lube pros. would never go there again if i were you
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  6. #6 Re: put 5w-30 in 10w-30 
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    so if doesn't matter, should i go 10w30 next time?
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  7. #7 Re: put 5w-30 in 10w-30 
    GTX Level Member bps02gtp's Avatar
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    yes you should. its kind of like if you're always synthetic and someone puts in coventional. you're ok for a little while but make sure u put in synthetic next time lol
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  8. #8 Re: put 5w-30 in 10w-30 
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    Quote Originally Posted by bps02gtp View Post
    you're ok for a little while but make sure u put in synthetic next time lol

    dont put synthetic if you got a high milage car.
    2001 GT Special Edition - 208k miles, junkyard status. Part out in progress.
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  9. #9 Re: put 5w-30 in 10w-30 
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    Quote Originally Posted by bps02gtp View Post
    yes you should. its kind of like if you're always synthetic and someone puts in coventional. you're ok for a little while but make sure u put in synthetic next time lol
    Thats not true you can switch and your motor will never know the differance. Like running a syn. blend which is a mixture of both oils. To the OP the only differance between 5w-30 and 10w-30 is that 5w-30 will flow better in below 0 temps. during a cold start up. After both oils are up to temp they are the same.
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  10. #10 Re: put 5w-30 in 10w-30 
    I live here. brandonl2000's Avatar
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    The important thing is you have oil. I always run 10w-30.

    And actually you can read some more if you're curious about oil types and such. http://www.bobistheoilguy.com/motor-oil-101/
    2003 Grand Prix GTP-3.5 setup, sold it, miss it
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  11. #11 Re: put 5w-30 in 10w-30 
    GXP Level Member txslow6's Avatar
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    When I was supercharged I ran 10w-30 in the summer and 5w-30 in winter. You will be fine
    85 Corvette
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    Quote Originally Posted by bps02gtp View Post
    yes you should. its kind of like if you're always synthetic and someone puts in coventional. you're ok for a little while but make sure u put in synthetic next time lol
    Again why?
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    Quote Originally Posted by Odi View Post
    dont put synthetic if you got a high milage car.
    If its been well taken care of then it wont matter.

    Take filler off and look at rockers.
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  14. #14 Re: put 5w-30 in 10w-30 
    GT Level Member TeeWX's Avatar
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    You can't change your own oil?

    1998 GTP : XP Cam, 3.2 Pulley, Supporting Mods<Sold>
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  15. #15 Re: put 5w-30 in 10w-30 
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    ok..didn't mean to start any debate..but thanks for all inputs.

    and no, not having a garage and summer temp doesn't make it look so fun to me;
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    Quote Originally Posted by DreamerGT View Post
    Thats not true you can switch and your motor will never know the differance. Like running a syn. blend which is a mixture of both oils. To the OP the only differance between 5w-30 and 10w-30 is that 5w-30 will flow better in below 0 temps. during a cold start up. After both oils are up to temp they are the same.
    You sir win.
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