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Thread: ATF Drain/Fill

  1. #136
    i-ACTIV AWD Aficionado Kedis82ZE8's Avatar
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    IIRC more fluid will be resting in the pan while engine is off than on. I suppose this is why you have to always check level with engine running . That is what I have seen on my GX anyways.
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  2. #137
    Registered Member yrwei52's Avatar
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    Arrow ATF Drain/Fill

    Quote Originally Posted by Triton46 View Post
    Good points. My initial reading from the ATF dipstick was at the second "2" on the 122 with the car warmed up and the engine off. It would be interesting to hear, on a properly measured fill, what the reading from the ATF dipstick was with engine running and not running. I did not see any frothing or bubbles on the dipstick which is usually an indication of an overfill.
    Like ColoradoDriver said, you have to keep the engine idling while taking the read on ATF level. Your read was high is because your engine is not idling. The main concern is under-fill not the over-fill, as many have found the factory ATF level is low. If you use the same volume of drained out ATF to refill, chances are you may under-fill the ATF as 3.5 quarts seem a bit low to refill. 3.7 ~ 3.8 quarts are more or less the right volume.

  3. #138
    Registered Member yrwei52's Avatar
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    Arrow ATF Drain/Fill

    Hete is ATF level measurement procedure from Mazda factory service manual:

    Quote Originally Posted by yrwei52 View Post
    Nice!

    ATF level should be at the central marker area on the dipstick at 122F while the engine is running. Make sure to shift into all possible gears during the warm-up.

    Judging by the color of your drained ATF, I may consider another drain-and-fill if I were you.


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  4. #139
    Registered Member Triton46's Avatar

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    Quote Originally Posted by yrwei52 View Post
    Like ColoradoDriver said, you have to keep the engine idling while taking the read on ATF level. Your read was high is because your engine is not idling. The main concern is under-fill not the over-fill, as many have found the factory ATF level is low. If you use the same volume of drained out ATF to refill, chances are you may under-fill the ATF as 3.5 quarts seem a bit low to refill. 3.7 ~ 3.8 quarts are more or less the right volume.
    I pulled the inspection plate/cap under the car when I got home today from work (10 mile drive) and removed the dipstick while the car was still running (and warmed up). It was right on the center block (middle) of the dipstick. After cleaning it off and reinserting, it showed again to be in the center.

  5. #140
    Registered Member yrwei52's Avatar
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    Arrow ATF Drain/Fill

    Quote Originally Posted by Triton46 View Post
    I pulled the inspection plate/cap under the car when I got home today from work (10 mile drive) and removed the dipstick while the car was still running (and warmed up). It was right on the center block (middle) of the dipstick. After cleaning it off and reinserting, it showed again to be in the center.
    From your description I do believe your ATF level is a bit low, like it was from factory.

    Like Mazda's factory service manual and ATF dipstick say, you have to measure ATF level with its temperature at 122F. Apparently your ATF temperature could reach 192F when your engine was fully warmed up at the time you took the measurement. ATF expands a lot more than engine oil when their temperatures are getting warmer. That's why all car manufactures will specify ATF temperature when ATF level is measured. Your ATF level is right on the central maker area when ATF was hot, it'd be below that level when ATF is colder at 122F. You need a bit more ATF to bring up thd level at 122F.

  6. #141
    Resident barbarian ColoradoDriver's Avatar
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    Quote Originally Posted by yrwei52 View Post
    From your description I do believe your ATF level is a bit low, like it was from factory.

    Like Mazda's factory service manual and ATF dipstick say, you have to measure ATF level with its temperature at 122F. Apparently your ATF temperature could reach 192F when your engine was fully warmed up at the time you took the measurement. ATF expands a lot more than engine oil when their temperatures are getting warmer. That's why all car manufactures will specify ATF temperature when ATF level is measured. Your ATF level is right on the central maker area when ATF was hot, it'd be below that level when ATF is colder at 122F. You need a bit more ATF to bring up thd level at 122F.
    Let me put it this way. I drained 3.5 quarts and it took 3.7 quarts to get it to the correct level at the correct temperature.
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  7. #142
    Registered Member Triton46's Avatar

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    Quote Originally Posted by yrwei52 View Post
    From your description I do believe your ATF level is a bit low, like it was from factory.

    Like Mazda's factory service manual and ATF dipstick say, you have to measure ATF level with its temperature at 122F. Apparently your ATF temperature could reach 192F when your engine was fully warmed up at the time you took the measurement. ATF expands a lot more than engine oil when their temperatures are getting warmer. That's why all car manufactures will specify ATF temperature when ATF level is measured. Your ATF level is right on the central maker area when ATF was hot, it'd be below that level when ATF is colder at 122F. You need a bit more ATF to bring up thd level at 122F.
    Quote Originally Posted by ColoradoDriver View Post
    Let me put it this way. I drained 3.5 quarts and it took 3.7 quarts to get it to the correct level at the correct temperature.
    You guys are extremely patient, this makes total sense. Thank you! I went out to the garage and pulled the inspection plate, removed the ATF dipstick and added 0.2 QTS.
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