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Gear lube

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Littlemule1, Nov 25, 2015.

  1. Nov 25, 2015 at 10:04 AM
    #1
    Littlemule1

    Littlemule1 [OP] Well-Known Member

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    Who uses synthetic gear lube in front/transfer/rear diff and do you see any real world benefit's from it, mpg,less load,ect ? The reason I ask is my 15 maintenance guide book specs new fluid at every 15,000 miles .( towing/ dusty, ect) . I tow bass boat less and less frequent these days but I do tow. Now if I change every 15,000 Im not sure synthetic fluid is really a worthwhile benefit ,do to cost .
    Any and all thoughts welcome !
     
  2. Nov 25, 2015 at 1:16 PM
    #2
    JeffreyB

    JeffreyB Well-Known Member

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    Most people around here like to run full synthetic since it is a relatively infrequent change. Mobil 1 full synthetic is probably the most popular choice for those 3 around here. I did my swap at 2000 miles just to get the break in stuff out and used walmart supertech 75w90 "synthetic blend" in mine. I didn't notice any difference after the change. I may switch to synthetic in my next change. Honestly it probably doesn't matter what you use if you are changing it every 15k as long as it is the correct weight.
     
  3. Nov 25, 2015 at 1:23 PM
    #3
    Mush Mouse

    Mush Mouse Club Soda Not Seals

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    its a Toyota truck and that's all the modifications needed
    I use MOBIL1 75w90 in the rear diff and SuperTech 75w90 in the front diff and transfer case:thumbsup:
     
  4. Nov 25, 2015 at 1:27 PM
    #4
    ZachPrerunner

    ZachPrerunner Sometimes she goes, sometimes it doesn’t

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    Lucas 75w90 is where it's at. Some people have reported a "choppiness" in the diff when using sythentic, but I think you'll be okay.
     
  5. Nov 25, 2015 at 2:16 PM
    #5
    Littlemule1

    Littlemule1 [OP] Well-Known Member

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    this is what im talking about .
    im a full synthetic believer .but i also like to change often .
     
  6. Nov 25, 2015 at 2:22 PM
    #6
    ZachPrerunner

    ZachPrerunner Sometimes she goes, sometimes it doesn’t

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    Yeah I was going through the same issue. The rear diff isn't hard to change, so you could run conventional and be able to change it with ease. In the front, I'd probably run synthetic just because it's more difficult to access the components up there. I'm running synthetic in the rear and haven't had any problems whatsoever. My differential hadn't been changed in over 100k and synthetic worked like it should.
     
  7. Nov 25, 2015 at 2:26 PM
    #7
    Justus

    Justus fucks not given

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    In ur toolbox
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    not so low, not so slow 2006 6 lug
    stockish
    in the sports yes..... Even then I think it was pre 2010???????
     
    ZachPrerunner likes this.
  8. Nov 25, 2015 at 2:27 PM
    #8
    Just Dandee

    Just Dandee Well-Known Member

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    Supercharged-2.5 lift-255/85/16
    Using Redline synthetic- recently changed my fluids-still running dino oil in the engine. Tracking MPG now not ready to call it yet but I a running about .75 mpg gain not quite a full 1 mpg. I have historically seen some sort of gains with this brand but its not cheap oil.
     
  9. Nov 25, 2015 at 2:29 PM
    #9
    Justus

    Justus fucks not given

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    In ur toolbox
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    stockish
    Always ran syn........ Never noticed a difference..... I still get 21 highway....... That's all imma say, too many ppl get butthurt when I post other numbers.
     
  10. Nov 25, 2015 at 2:31 PM
    #10
    Thomas Jefferson

    Thomas Jefferson Keyboard Warrior

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    One can never have too many light bars.
    Mush Mouse likes this.
  11. Nov 25, 2015 at 2:33 PM
    #11
    Littlemule1

    Littlemule1 [OP] Well-Known Member

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    thanks . no 80/140 in these?
     
  12. Nov 25, 2015 at 2:37 PM
    #12
    Clearwater Bill

    Clearwater Bill Sometimes when I close my eyes, I can't see.

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    Largo Florida
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    A few OE parts from fancy trucks
    Ran Mobil 1 of the proper wt and GL rating in the Torsen diff of my street/race car for over 100k. Many a hard launch. Doubled the OE change interval, no issues. New owner has continued same pattern, everything still working fine.

    If you aren't going to increase the OCI, just using the correct dino is fine.

    The OE recommendations on this stuff have a LOT of head room. Engineers and bean counters working together to avoid warranty issues is a lethal combination for overkill.
     

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