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Transmission Oil

Discussion in 'VF Holden Commodore (2013 - 2017)' started by Jayden1985, Sep 30, 2017.

Guys, after some help if possible please!!! Did a real big mistake today in my VF SV6 Holden commodo

  1. Help needed

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  2. What’s the best way to check and refill

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  1. Jayden1985

    Jayden1985 New Member

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    Guys, after some help if possible please!!! Did a real big mistake today on my VF SV6 Holden commodore . I emptied my transmission oil instead of engine oil ... absolute idiot just wasn’t thinking , does anyone know how I can refill my transmission oil?
     
  2. Clay1391

    Clay1391 Member

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    Look in manual it should tell you how.
     
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  3. VCoz

    VCoz Member

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  4. greenacc

    greenacc Searching for the billion

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    Refill it with the same amount of correct grade fluid as you emptied out of it, using the fill plug on the side of transmission.
     
  5. VCoz

    VCoz Member

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    I have not changed the oil in this type of transmission as no dipstick to check levels (I understood a GM tool is used)
    The site linked before has a number of statements re this task that suggest Jayden seek someone's advice who has done it before and research is done if the replacement fluid is not the specified GMH product.
    Some of those statements are copied below:
    "The drain and refill procedure is quite involved and very, very explicit in how the procedure is to be performed in order to achieve the proper fill level." "For the A6, look up the procedure first before draining it. Its quite a lot more difficult to drain/fill the auto than the manual. For example, the trans fluid has to be in a very narrow temperature range which isn't cold and isn't full operating temp."
    Re greenacc "Maybe, if you assume the initial level is correct and use a syringe with flex tubing through the fill hole to remove and add. Make sure you measure carefully, don't spill any and don't push any dirt into the the trans. You won't change much of it that way though as most of the fluid will be inaccessible.
    The "drain" plug on the bottom is to check the level which must be done with the car running and at a certain temperature. The manual specifies dropping the pan to change the fluid. The final level of the fluid is critical to the correct operation of the transmission. The manual trans is far simpler with a drain plug at the low point and a fill plug at the fill level of the trans. The manual is not as sensitive to fill level like the auto and much easier to fill to the correct level."
    Again I don't have the answers needed but have personally experienced the problems of your V6 A6 model gearbox having low oil.
     
    Last edited: Sep 30, 2017
  6. Ron Burgundy

    Ron Burgundy Well-Known Member

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    Why on earth would they get rid of dipstick and the ability to check and top up the oil....
     
  7. wraith

    wraith Hand over the dog bikkies

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    Welcome to the future. It's lifetime oil now (apparently)
     
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  8. greenacc

    greenacc Searching for the billion

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    So your box slowly starts to play up and you take it to the stealership (of course) to have it looked at, for a fee ;)
     
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  9. Ron Burgundy

    Ron Burgundy Well-Known Member

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    Merc has done it with engine oil now...
    Can't check it. No dipstick
     
  10. monstar

    monstar Naturally as-pirated

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    Unless there is a catastrophic terminal problem there is no chance of fluid leaking out. So what’s the point in checking fluid level in a closed system?
    See the fluid level checking protocol on the 6l80/90 is quite advanced because basically Dexron VI (special ATF) expands its volume with energy (heat) anyway. That’s why even taking your car to local auto trans specialist who does normal slushboxes generally underfills our trans.
    In other words like tearing down a PC, it’s not that it can’t be done by anyone but not advisable for most people to make a decision about levels without following the proper procedure. There’s a high chance owner will break it, not fix it.
    It does need changing every 80k km - 100k km, or as soon as 1000km if you abuse (cook) it.
    Also there were trans dip sticks for our car sold in the US, after 20k - 40k miles water, snow and shit got in through incorrect fitting / refitting, drawing PITA level dipstick up through engine bay past headers.
     
    Last edited: Oct 1, 2017
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  11. Ron Burgundy

    Ron Burgundy Well-Known Member

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    I still like to inspect the colour and decide when to replace it on basis of that....but I see now why they would have done it
     
  12. monstar

    monstar Naturally as-pirated

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    In over 300k km running this engine hard under various conditions I have never needed to top the oil. It is not a thing of the past, just not a huge issue to have incrementally reported on the dash really, apart from if level is low.
     
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  13. monstar

    monstar Naturally as-pirated

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    Yeah I get you, but more fluid in the pan and bigger filter really is the best long term. With this cheap and easy (more fluid / more flow / more cool / less duty) mod you can be confident all you need do is drop the pan every 100k km, no brainer.
    Totally recommend that at next big service if you are gonna hang onto it, mine’s done twice the warranted (MTBF) service life zero problems.
     
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  14. Ron Burgundy

    Ron Burgundy Well-Known Member

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    I will probably do it at 80 000 km or 5 yrs.... whichever comes first

    I have only done 14000 km so far. I do about 15 000km a year
     
  15. VCoz

    VCoz Member

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    While what I posted above seems like 'a dealer only thing' owners in the US are changing the same GM boxes Auto transmission oil - just process needs to be done differently with these boxes. To my understanding (not a mechanic), the proper fluid level when the engine is idling is at some particular level below the drain hole, hence assume a 'raised inlet tube' exists (i.e. may have a tube inside the drain hole that extends above the oil level at idle). Jayden must have removed the plug with the engine not running to lose fluid. Surely what we should first focus on is helping Jayden get his car going again with simple instructions from someone that has changed their A6 fluid (probably most of the fluid is still in his box but not enough to get running again without risks (guess less than a litre lost)) - the GM 'tool' I guess just measures the level fluid is below the drain's 'raised tube' which happens to also be the entry point of new fluid. Suggest someone 'not guessing' provide a simple fix (bent wire or whatever with measurements) to determine the actual fluid level or determine if filling on idle to the top of the drain (until fluid runs out) means the transmission is filled too much to run the car and take it to have the level checked at a dealer or Transmission specialist. The procedure to top up the transmission is out there somewhere or with a member of this blog. If as suspected self-changing the fluid is doable for many owners then the decision where to get the service done at around 100k is not limited to the dealer should the owner have the correct method and want to do the work. The debate has moved from finding a fix for an owner's error and to help them.
     
    Last edited: Sep 30, 2017
  16. VCoz

    VCoz Member

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    Found this (for 6L80 (V8 A6) but assume applies: again only guessing as not done it (note level control plug is what we are assuming is the drain plug). See the images on the linked site (shows plugs) and read the other information. Appears not so hard to get the car mobile.

    https://etesupport.zendesk.com/hc/e...ll-Guide-6L80-6L90-GM-Automatic-Transmission-

    FLUID CHECK PROCEDURE
    6L80 / 6L90 transmissions do not typically use a dipstick. Proper fluid level is achieved when fluid begins to drip from the
    Level Control Plug opening.
    1. Verify vehicle is on level ground when performing fluid
    level check procedure.
    2. Verify drive wheels are blocked and parking brake is
    applied.
    3. Verify engine is idling at 0% throttle.
    4. Verify transmission fluid temperature (TFT) is between
    86°F and 122°F.
    5. Shift transmission through entire range – hold in each
    range for at least three (3) seconds. When complete,
    shift vehicle back into PARK.
    6. Remove Fill Plug. Remove Level Control Plug.
    7. If fluid does not drip from hole (underfill condition), add
    fluid until fluid drips slightly from hole.
    8. If fluid runs from hole when Level Control Plug is
    removed (overfill condition), allow fluid to flow until
    only a slight drip remains.
    9. Reinstall Level Control Plug. Reinstall Fill Plug.
    10. DO NOT OPERATE VEHICLE BEFORE OR AFTER
    PROPER FLUID LEVEL HAS BEEN ESTABLISHED.
     
    Last edited: Sep 30, 2017
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  17. GUZZLA

    GUZZLA Member

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    To the OPs original question, I'm sure by now you've sort professional help. Getting the transmission oil level correct is quite a complex process as i found out doing a drain and flush on a FJ Cruiser I owned. It essentially requires the use of a device that can measure trans oil temp in real time, or to know what terminals to bridge in the obd2 port to cause the computer to go into trans temp monitoring and reporting (usually a series of flashes on the gear selector or dash). Trans fluid expands in volume at certain temperatures and needs to be installed in a particularly narrow temp range to determine the correct volume.

    I do hope you can get or have got it sorted without too much inconvenience or expense.
     
  18. GUZZLA

    GUZZLA Member

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    Also to the OP, I'm curious to know many km on your vehicle and did you happen to notice the colour of the oil? Was it bright red or brown? Did it smell sweet or burnt?
     
  19. monstar

    monstar Naturally as-pirated

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    Well I don't know first hand about the 6l45e but don't think pan is same as 6l80, in that he could very well have drained all fluid out of the bottom drain plug. V6 has different pan to the V8.
    I think the fill plug is in same location and procedure same, just that OP could well have to start with a full fill vs top-up. You cant really overfill it without really trying BTW.
    Dexron VI is hugely expensive stuff, unfortunately. Nothing in it for OP than get a squeeze bottle and 10 litres Dexron VI from SuperCheap or Autobarn or Bursons.
     
  20. Ron Burgundy

    Ron Burgundy Well-Known Member

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    Good video

    This shows you how to check level properly and add oil. Tricky but right way to do it.
     
    Last edited: Oct 1, 2017
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