Drain/fill tranny fluid at 200k? - Lexus IS Forum
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post #1 of 9 (permalink) Old 04-08-2019, 10:35 AM Thread Starter
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Drain/fill tranny fluid at 200k?

Was thinking of popping the tranny bolt and drain what I could and add some new fluid thru dipstick. Car has 200k miles with no previous maintenance record. My mechanic says they don’t shed clutch material so it’s be ok, whaddaya guys think? Also I would use probably the oem Toyota IV tranny fluid
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post #2 of 9 (permalink) Old 04-08-2019, 02:09 PM
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Originally Posted by Beeeastman1 View Post
Was thinking of popping the tranny bolt and drain what I could and add some new fluid thru dipstick. Car has 200k miles with no previous maintenance record. My mechanic says they donít shed clutch material so itís be ok, whaddaya guys think? Also I would use probably the oem Toyota IV tranny fluid
It should be fine. I have done it several times.

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post #3 of 9 (permalink) Old 04-08-2019, 02:27 PM
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I can't see anything wrong with that
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post #4 of 9 (permalink) Old 04-08-2019, 07:14 PM
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It might not "shed clutch material" but it does have bearings and sprag (?) plates that wear so fluid changes help remove the debri. The risk is the particles will enter and jam up the solenoids and other moving components if not cleared somehow. Also the fluid is in a hydraulic circuit and is subject to shear and breakdown of its own properties, so new fluid is essential over time. I probably wouldn't both changing the gauze filter in the trans unless you have it apart, its more of a large particle filter than a fine micro filter like the engine uses.

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post #5 of 9 (permalink) Old 04-10-2019, 09:45 PM Thread Starter
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Doc looks Ike’s everyone suggests to do a drain and fill (I think this adds about 3.5 quarts of new fluid to the system from what I’ve read)
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post #6 of 9 (permalink) Old 04-11-2019, 11:49 AM
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Yeah 3.5 out of maybe 10 quarts. Might want to do it periodically till the fluid remains a nice red color.
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post #7 of 9 (permalink) Old 04-13-2019, 12:18 PM
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If you are the least bit capable, I recommend the "exchange" method described in this thread. My post is the last on the thread.

https://www.my.is/forums/f87/auto-tr...rocess-606013/

It was quite easy, just make sure you have a big enough bucket, etc. And use Toyota fluid, a case on Amazon is quite reasonable. I sleep better knowing I did this at just under 200K.
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post #8 of 9 (permalink) Old 05-31-2019, 01:14 AM
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Do you have a link for the fluid on amazon?
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post #9 of 9 (permalink) Old 05-31-2019, 04:45 AM
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Do you have a link for the fluid on amazon?
Just search "Toyota type IV" It is not hard to find.

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