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Changing Differential and Transfer Oil on 5th Generation

Discussion in '5th Gen 4Runners (2010+)' started by cthomas31, Mar 16, 2019.

  1. Aug 8, 2019 at 9:13 AM
    #31
    j cat

    j cat New Member

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    I did purchase toyota washers for plugs. I did not replace the washers and because the washer looked good I reused it... no leaks. 3 years old now.. if the washer is corroded or damaged then replace it so have some ready for use. I do not install the covers when I do the oil changes. leave them off a few days to check for any leaks...

    very odd that my 2000 silverado has the same washer on the oil drain plug. 175K miles ..no problems.
     
  2. Aug 8, 2019 at 9:19 AM
    #32
    nimby

    nimby in the drink

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    Toyota recommends engine oil be replaced every 10,000 miles under normal driving conditions. Diffs, transfer case, and trans oils are essentially "lifetime" oils unless used under extreme conditions. They do not recommend changing them at short intervals under normal wear and tear.
     
  3. Aug 8, 2019 at 10:12 AM
    #33
    4x Old Guy

    4x Old Guy New Member

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    Yea, it’s probably my old school paradigm. My previous Toyota (which I’m still driving after 250,000 miles), is a 2003 Tacoma 4x with manual trans. I guess oil and engine technology as changed a bit over the years.

    I just wonder, the guys selling oil changes say 3000 miles, and the guys selling cars say 10000+ miles. Truth is, foreign particles still get in the oil through wear, combustion byproducts, or moisture (every gear case has a vent of some kind). I’d just as soon keep as much of that junk out of there for as long as possible. Changing fluids is cheap insurance.
     
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  4. Aug 8, 2019 at 11:12 AM
    #34
    nimby

    nimby in the drink

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    I struggle with the thought of it being a lifetime oil as well. Part of me want to change it out at say 100,000 miles and the other part says fvck it......let's see how far this bitch will go.

    I mean how many people do you know that have had problems with their 4Runner motors, diffs, transmissions, and transfer cases? Definitely not a systemic problem among these vehicles. And Toyota does extensive, long-life testing on them to make sure their oil change interval recommendations are appropriate.

    Of course you will get the naysayers that insist Toyota tells us this because they want to sell you more vehicles, but that is contrary to the Toyota philosophy of providing the customer with the most reliable vehicle they can. Because if they do that, many will be customers for life. And Toyota has proven this time and time again with reliable, long lasting vehicles.
     
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  5. Aug 8, 2019 at 11:34 AM
    #35
    SR5 Limited

    SR5 Limited New Member

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    Ya I’m using my neighbor’s lift. I’m too fat to get under it. From being on this dam site all the time.....
     
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  6. Aug 8, 2019 at 11:43 AM
    #36
    j cat

    j cat New Member

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    the long time owners of these vehicles do not keep the drive train lube in for ever.
    rear gear oil diff has break in first 800 miles oil over heats turns dark/black.. if off road use 4wd often gonna have to do the front diff also. transfer case lube many recommend 30-40K miles. transmission fluid requires replacing 100k-130K miles. many did not do the tranny fluid changes at the 130K .. at 170-200K miles they had torque converter shift problems had to do the tranny flush method .. then it was fixed..

    these owners keep these for 20yrs .. pass them on to family members.. that is why these have a very high resale value... GM low resale value .
    older runners it was rust belt frame issue.. runner still runs but the frame is gone.
     
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  7. Aug 8, 2019 at 12:13 PM
    #37
    Jynarik

    Jynarik I like fat booty

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    I never did either, til I started riding motorcycles and got in the habit of changing them. Aluminum cases made for the possibility of case cracking if the washer had any imperfections.

    Probably not needed but they’re cheap enough
     
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  8. Aug 8, 2019 at 12:30 PM
    #38
    Jynarik

    Jynarik I like fat booty

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    What fluid do you guys recommend for front, rear and transfer? Plan on doing mine in a couple months
     
  9. Aug 8, 2019 at 12:57 PM
    #39
    4x Old Guy

    4x Old Guy New Member

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    Most vehicles have (or should have) magnetic drain plugs. The first time you pull that plug and see that spike hair-do of iron filings on the plug, you’ll be glad you changed the oil. Fine filings (like what you’d get running a magnet through sand) is normal (especially for the first time). However, little tiny pieces, that might be a different story.
     
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  10. Aug 8, 2019 at 1:02 PM
    #40
    j cat

    j cat New Member

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    I used mobil synthetic 75-90wt gear oil.. reason I used this is because the gear oil is highly recommended and the owners have used this in the frt/rear gear boxes for 300K miles..
    now the transfer case requires toyota transfer case oil .. this is a special oil that has the additives in it to reduce wear ..

    toyota transfer case fluid

    toyota transfer case fluid.jpg
     
    Last edited: Aug 8, 2019
    scottalot and Jynarik like this.
  11. Aug 8, 2019 at 1:14 PM
    #41
    4x Old Guy

    4x Old Guy New Member

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    I agree with the Toyota testing and reliability reputation (this is the 4th Toyota I’ve owned). They can run them through the wringer for many thousands of miles, but they can only do it in a relatively short period of time (vehicle has to go onto production sometime). What I wonder about is real world, long clock time, testing (a thousand short trips, low miles per year, parked in unfriendly weather, slogging through fun off-road junk, sitting some more, repeated powertrain temperature cycles with air inside the cases expanding and contracting and sucking in humid air, internal condensation when they cool back down again, etc.). Those are the conditions that are hard on the lubricants.
     
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  12. Aug 8, 2019 at 1:46 PM
    #42
    Jynarik

    Jynarik I like fat booty

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    Thanks!
     
  13. Aug 8, 2019 at 1:51 PM
    #43
    KSJ08

    KSJ08 New Member

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    I agree BUT they ARE vents NOT vaccums. I work with A/C Turbine Eng/G/B's stick to OEM & never have problem W/them. I stick W/OEM recomedations. THEY know their articles. But then again these components have chip plugs. Get a light, evaluate the source, if negalible, drain refill (eng R&R filter ((on BHC if NO external eng.filter you just scrapped Oil Cooler)& do 5 minute penalty run, no light, shut down do leak check and operate in normal condition. If light refer to CMM for next procedure. JMHO :hattip:
     
    Last edited: Aug 9, 2019
  14. Aug 9, 2019 at 12:16 PM
    #44
    SR5 Limited

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    Here’s what the dealership uses....255ED73B-D545-4464-BB7D-C918D8D4372A.jpg
     
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  15. Aug 9, 2019 at 12:20 PM
    #45
    thirdyota

    thirdyota New Member

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    I use Redline 75w85
     
  16. Aug 9, 2019 at 12:26 PM
    #46
    SR5 Limited

    SR5 Limited New Member

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    Sometimes cheaper is better. I tried using expensive Motul oil in the GSXR and it was having shifting problems. switched back to a basic synthetic and it shifts perfect...
     
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  17. Aug 9, 2019 at 4:31 PM
    #47
    j cat

    j cat New Member

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    my dealership uses mobil syn 75-90wt in 50 gallon drums bulk ..for the diff's ..
     
  18. Aug 9, 2019 at 4:56 PM
    #48
    SR5 Limited

    SR5 Limited New Member

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    I think I used that, the last diff change. No metal shavings at all. O’well my rear end will prob start crunching now.
     
  19. Aug 9, 2019 at 6:04 PM
    #49
    WallyT4R

    WallyT4R New Member

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    Royal Purple Synchromax is also recommended for the transfer case and it is a lot cheaper and way more readily available than the Toyota stuff. I have Synchromax in my transfer case
     
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  20. Aug 9, 2019 at 6:07 PM
    #50
    WallyT4R

    WallyT4R New Member

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    I pretty much stick to the severe duty maintenance schedule in the owners manual but with my use I definitely fall into the severe duty parameters. Towing, frequent stop/starts, off road, dust, etc.
     
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