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How much ATF needed for fluid change?

 
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Old 07 Jun 2018, 08:52 pm
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Default How much ATF needed for fluid change?

Getting ready to change my ATF, filter and pan, but not sure how much ATF I need. Will a 5 liter jug be enough or should I go ahead and throw down another 11 buck for another quart? As always, thanks in advance!
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Old 08 Jun 2018, 02:40 am
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Default Re: How much ATF needed for fluid change?

The 5 quart jug should be enough. Buy an additional quart bottle and keep in in the cubby hole in the back of the car. -- keep upright --

----------ATF+4 ONLY---------
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Old 08 Jun 2018, 03:51 am
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Default Re: How much ATF needed for fluid change?

Typically a trans fluid and filter change will require between 4 and 5 quarts.
That is about half of the total capacity (just removing the pan does not drain the entire system).
Use ONLY ATF+4.
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Old 08 Jun 2018, 06:53 am
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Default Re: How much ATF needed for fluid change?

as long as the existing level is correct... the only way is to measure what comes out.. it is quite a chore to get the level correct especially if you do more than change the filter (like disassemble the valve body).

anywhere from 1 gallon to 2.5 gallons... how long you let everything drain will change what you need...

the last auto tran I serviced was the bosses pride and joy 07 dodge cummins 1 ton which has internal spin on filters as well as a standard filter. what a nightmare, I will never attempt to do a fluid change w/o measuring. AGAIN. and just say no to the damn sealed Toyota jobs!

Last edited by rambojoe; 08 Jun 2018 at 06:57 am.
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Old 08 Jun 2018, 08:08 am
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Default Re: How much ATF needed for fluid change?

Hint:
3 choices
  1. Drain the old fashioned way by removing the pan (messy and time consuming every time)
  2. Replace the pan with one that has a drain plug (still messy but not next time, only maybe once every 3rd time to change the filter)


  3. Use a pump to drain through the filler neck (clean but you still have to eventually drop the pan to change the filter)



Since you are replacing less than 1/2 of the ATF, it's a good idea to do this several times over the span of a year or two for a (mostly) complete replacement. The other way is to do a complete flush where you disconnect the return to the cooler, pump out 1 quart by running the engine for a few seconds, stopping it and replacing the exact amount with new fluid and repeating it until the fluid coming out looks brand new. I just did that with an 07 Camry and it took 3 gallons/12 start and stop cycles to get perfectly clear fluid to come out. It's still a good idea to drop the pan, replace the filter and clean the magnet if it has never been done so the first refill took an additional gallon for a total of 4 gallons.


Last edited by rsrocket1; 08 Jun 2018 at 08:18 am.
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Old 08 Jun 2018, 04:37 pm
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Default Re: How much ATF needed for fluid change?

Thanks for the feedback...Just ordered the Dorman pan, a 5 liter jug and 1 qt of mopar atf4, mopar filter and felpro gasket for under 100 bucks. Not bad IMO. Kind of embarrassed that the car has just clocked 100k and has never had the fluid or filter changed. Stuck with mopar filter and fluid to ensure no hassle with warranty work, should something happen down the road.
Carl48 likes this.
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Old 08 Jun 2018, 04:48 pm
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Default Re: How much ATF needed for fluid change?

Yep, pretty much what I did,


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Old 08 Jun 2018, 04:55 pm
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Default Re: How much ATF needed for fluid change?

Quote:
Originally Posted by rsrocket1 View Post
[*]Replace the pan with one that has a drain plug (still messy but not next time, only maybe once every 3rd time to change the filter)
this ^^^
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