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What is the best oil to use?

Discussion in '1st Gen. Tacomas (1995-2004)' started by BG04Taco, Nov 3, 2009.

  1. Nov 3, 2009 at 5:43 PM
    #1
    BG04Taco

    BG04Taco [OP] Well-Known Member

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    I bought my truck new and its only had Royal Purple. Im about to change front and rear diff and engine oil but I dont want to keep paying RP if someone knows what is the best.
     
  2. Nov 3, 2009 at 5:45 PM
    #2
    Brunes

    Brunes abides.

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    Best is subjective:

    Royal Purple is pretty good stuff.
    Mobil1 is good stuff.

    Use what you want-
     
  3. Nov 3, 2009 at 5:52 PM
    #3
    STLharry

    STLharry Lube: It's the key to penetration.

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    i have mobil 1
     
  4. Nov 3, 2009 at 5:53 PM
    #4
    jandrews

    jandrews Carolina Alliance Southwest Region Ambassador

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    Any quality synthetic will do. Change regularly. Royal Purple is fine if you want to stick with that. Mobil 1 is also fine and a little less expensive.

    If you want to do extended OCIs, stick with one brand for a few changes and get oil analyses done to determine what your OCI should be.

    FWIW I ran Mobil 1 for the first 3k miles and swapped to RP a couple days ago. Plan to run RP from now on because the UOAs over at bobistheoilguy.com show it shearing down to about a 20 weight over time while still protecting excellently against engine wear.

    The Diffs/T-case are still full of Mobil 1...nowhere near the needed time/mileage for a change yet...
     
  5. Nov 3, 2009 at 5:54 PM
    #5
    pittim

    pittim mittip backwards

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    I'll be putting Redline MT90 in my trans pretty soon, and M1 in everything else (5-30 in engine, 75-90 in diffs and tcase)
     
  6. Nov 3, 2009 at 6:06 PM
    #6
    BG04Taco

    BG04Taco [OP] Well-Known Member

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    Reason for concern is I saw one article on how RP needed to change their advertising because a lot of claims were false. However I like it, I trust it will see how long my engine lasts with it.
     
  7. Nov 3, 2009 at 6:08 PM
    #7
    jandrews

    jandrews Carolina Alliance Southwest Region Ambassador

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    Which article, exactly?

    Never mind. Googled it up. Interesting. I'll still take the oil analyses.
     
  8. Nov 3, 2009 at 6:16 PM
    #8
    BG04Taco

    BG04Taco [OP] Well-Known Member

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  9. Nov 3, 2009 at 6:22 PM
    #9
    03sasTACO

    03sasTACO Member

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    i use rotella t 10w30. i know i know crazy but it has zinc that helps with repair of cylinder walls and also stays cooler due to it being a diesle oil. it also last a little longer and doesnt thin out as much when it does get hot. look into it. i have been running it in my truck for about a year now.
     
  10. Nov 3, 2009 at 6:30 PM
    #10
    jandrews

    jandrews Carolina Alliance Southwest Region Ambassador

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    Yeah I saw it.

    Before switching to RP I went over to the Bob forums and read every RP used oil analysis in the first 40 pages of threads.

    The consensus seems to be that it shears down to a 20 weight over 5000 or so miles, but engine wear stays low. This may be where people pick up their .5 HP or 1 MPG gain....essentially it turns into a thinner oil.

    Some might argue this is a bad thing, but there were no signs of high wear in these oil analyses either, so the data suggests the RP is maintaining protection, and on paper a thinner oil that can protect against wear just as well is better...

    In any event, I'm not worried about it.
     

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