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Rear diff gear oil for 11 TRD Sport

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Durnaia, Nov 26, 2016.

  1. Nov 26, 2016 at 7:51 AM
    #1
    Durnaia

    Durnaia [OP] Well-Known Member

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    Crossville, TN
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    '11 TRD Sport - Silver Streak Mica
    In doing some searching, I found this:

    ""You don't need the LSD additive. Here's how it breaks down.

    2005 - 2008 Tacoma Sports Diffs have clutches in the diff which require the additive to be added along with the Gear Oil.

    2009 - 2015 Tacoma Sports have electronically controlled LS diffs. Basically it is an open diff. What makes the Limited Slip "effect" is the brakes. When one of the wheels starts to spin the computer applies the brakes to that particular wheel, creating a similar effect to Limited Slip. If you wheel a lot you may wear your rear brake shoes faster than the front brake pads.""

    So, that rules me out having to do an LSD additive. Got that. I also checked the manual and it states to use 75W85 GL-5 and I read that most people on here just put the 75W-90 back in, that's fine. But, what I can't seem to narrow down an opinion on is: do most put a synthetic gear oil in or go with a conventional fluid? With my truck approaching the 60k mile mark and cold weather starting to set in, I was going to go ahead and knock out this rear diff service myself. I know oil threads can be open ended to hell so I tried to do as much searching I could.
     
    schecter517 likes this.
  2. Nov 26, 2016 at 8:03 AM
    #2
    TACO TX

    TACO TX Well-Known Member

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    Denison ,Texas
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    Synthetic(Mobil 175/90 is what I use, no real reason not to with stock gears. Most gear manufacturers recommend using a heavier conventional when gearing down but also recommend changing more often due to harsh conditions. For everyday driving conditions every 30k is recommended.
     
  3. Nov 26, 2016 at 8:04 AM
    #3
    Durnaia

    Durnaia [OP] Well-Known Member

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    Thank you sir.

    Yeah, daily driving is what I do 99% of the time and that's just highway driving. Most offroad I get is driving through a yard or field. I do occasionally pull a bass boat.
     
  4. Nov 26, 2016 at 8:19 AM
    #4
    maxtherat

    maxtherat Well-Known Member

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    All the usual diesel truck mods- fuel system upgrade, programmer, CAI, intake manifold, j hooked waste gate
    My .02. I've always been partial to synthetics. For me, advantages outweigh the disadvantages. More expensive... Yes but extended drain intervals, less waste. Synthetics tend to be more stable, less shear and if you do need a ls additive most are already compatable for that- royal purple being one that I know for sure. I know there are also a lot of guys out there who like Mobil also. The one variable would be if you're in an area/ use where you might get water contamination then just go low cost as you'll be draining way before the oil has broken down.
     
  5. Nov 26, 2016 at 3:33 PM
    #5
    Kerrigan911

    Kerrigan911 Well-Known Member

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    I run 75w90 mobil 1 ls. Get it at aap with online coupon, like 9 bucks a bottle
     
  6. Nov 26, 2016 at 3:34 PM
    #6
    Durnaia

    Durnaia [OP] Well-Known Member

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    Hardscrabble likes this.
  7. Nov 26, 2016 at 3:36 PM
    #7
    EatSleepTacos

    EatSleepTacos Well-Known Member

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    Randy
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    Synthetic here too. Run Royal Purple and have had no issues. I would've been fine running mobil 1 but the store only had enough Royal purple. Cost damn near $70 for the 4 quarts.
     
  8. Nov 26, 2016 at 3:51 PM
    #8
    Durnaia

    Durnaia [OP] Well-Known Member

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    Does the LS matter in mine since it doesn't have "true LSD"?
     
  9. Nov 26, 2016 at 4:41 PM
    #9
    TACO TX

    TACO TX Well-Known Member

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    No it doesn't effect anything.
     
    Durnaia [OP] likes this.
  10. Nov 26, 2016 at 5:44 PM
    #10
    Hardscrabble

    Hardscrabble Well-Known Member

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    Leather seats, WeatherTech's, Access LiteRider tonneau cover, extra D-rings in bed & tailgate. Pelley lightbar with Hella 700FF's. Temp./compass O/H console.
    I prefer the synthetic oils and that's what I used in my '11 DCSB differentials.
     
    Durnaia [OP] likes this.
  11. Nov 26, 2016 at 8:46 PM
    #11
    Durnaia

    Durnaia [OP] Well-Known Member

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    Thank you guys.
     
    Hardscrabble likes this.
  12. Dec 30, 2016 at 12:04 PM
    #12
    Durnaia

    Durnaia [OP] Well-Known Member

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    I like to update threads that I start. I went ahead and did the three services this week; rear differential, transfer case, and front differential. All using the tutorials I found on here. I had also got the crush rings and washers using the grab bag packet that Amazon has: https://www.amazon.com/gp/product/B017V4BAXI/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

    The fluid changes is some of the easiest I have done. Everything is easily accessible, except the tight fit on filling the front diff back up and trying to keep my head lamp on my head from falling off. I don't think mine had ever been changed and I was at 60k so I have a good peace of mind knowing that it's good for many more miles.
     
  13. Dec 30, 2016 at 2:26 PM
    #13
    hotrod53

    hotrod53 Well-Known Member

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    Weathertech floor liners moded to hold OEM floor mats, weathertech vent visors, Toyota bed mat, LEER 100XL cap, hood gasket mod to stop whistling.
    I like the Amsoil Severe gear and it doesn't have the horrible rear end grease stink. IMO, the locker even worked a little better on Amsoil. Still sketchy to get it locked, but better. if you saw how it works, you'd understand why it does what it does. The truck is still on the road at 205k so something is going right.

    Remember to remove your fill cap before you drain it just to insure that you can get it open. Otherwise you could drain it and not be able to refill it.
     
  14. Oct 28, 2017 at 11:50 AM
    #14
    Unchained 5150

    Unchained 5150 Rick

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    Don't mean to hash up and old thread but I want to change out my front and rear Diff's fluid, I have a 2015 TRD Sport 4x4 and am going to use the Mobil 1 like I did last time, but forgot which one I need. And do I need new gaskets and such?
     
  15. Oct 28, 2017 at 12:06 PM
    #15
    EatSleepTacos

    EatSleepTacos Well-Known Member

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    I just use 75-90 mobil 1, and I always replace the crush washers

    https://www.amazon.com/GENUINE-TOYO...509217535&sr=8-4&keywords=toyota+crush+washer
     
  16. Oct 28, 2017 at 12:11 PM
    #16
    Unchained 5150

    Unchained 5150 Rick

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  17. Oct 28, 2017 at 12:13 PM
    #17
    EatSleepTacos

    EatSleepTacos Well-Known Member

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    No, you don't need to worry about it. IIRC the only ones that need that are earlier sports that have the mechanical LSD.
     
  18. Oct 28, 2017 at 12:14 PM
    #18
    Unchained 5150

    Unchained 5150 Rick

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    So get the bottle that doesn't have the LS on it?
     
  19. Oct 28, 2017 at 12:15 PM
    #19
    EatSleepTacos

    EatSleepTacos Well-Known Member

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    I'm running that stuff now and everything has been fine :notsure: Doesn't necessarily mean I'm right though :help:
     
    Unchained 5150 likes this.

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