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      11-30-2020, 05:02 PM   #133
richf80
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Sharing analysis from my DCT fluid after 77k miles.
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      11-30-2020, 06:34 PM   #134
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Sharing analysis from my DCT fluid after 77k miles.
Nice, I guess 100k sounds good to me, thanks for posting. Do you drive your car hard, or track it ?
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      11-30-2020, 06:40 PM   #135
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Originally Posted by richf80 View Post
Sharing analysis from my DCT fluid after 77k miles.
Nice, I guess 100k sounds good to me, thanks for posting. Do you drive your car hard, or track it ?
Yup! Unknown number of autocross events and several track days.
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      12-01-2020, 03:12 PM   #136
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Resumen ¿the oil its ok ???
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      12-02-2020, 03:04 PM   #137
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Sharing analysis from my DCT fluid after 77k miles.
well, that seems like good news, thanks for sharing that.
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      12-02-2020, 04:13 PM   #138
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Sharing analysis from my DCT fluid after 77k miles.
well, that seems like good news, thanks for sharing that.
No problem! Hope it helps others decide.
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      12-06-2020, 11:21 AM   #139
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Good luck finding a BMW tech that will replace the DCT oil. They will not do it, because BMW does not recommend it there is no clear procedure and a lot can go wrong actually reducing the lifetime. I have seen posts about the DCT oil still looking very good after 100k miles. I don’t understand why people insist on having it replaced every 50k miles but please be my guest. Synthetic oils and components of today cannot be compared with those from a decade ago, the mechanics were in the past trained to replace oil every 5k miles or sooner who learned from teachers that were taught the same. If I have to replace my DCT after 220k miles who gives a sh*t, almost nobody drives their car for so many miles. Don’t exaggerate with these unneccessary fluid changes people but do as you please. I drive my car for 5 years and then buy another but keep this one as 2nd car. But al I going to use my current car as a daily driver? Absolutely not so it does not really matter to replace the DCT fluids every 50k miles. Proof me wrong! Replace it and capture some and send it to a lab for analysis and show us here how the oil looks.
I am just one example but I have 205,000 miles on my 2013 X5 and never changed the transmission fluid. So far I would call it "lifetime" fluid. No problems yet, the transmission has always run great.

Last edited by Breaking Bad; 12-06-2020 at 12:00 PM..
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      12-20-2020, 10:58 PM   #140
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i just did mine at 20k miles. i track 10 weekends a year and had 40 track days on it. i do fluid flush 2-3x the service interval . so oil change every 5k , rear diff at 25k, etc. got the kit from FCP euro, $400 for labor at the dealer.

car feels the same, less buckling on downshift , it's probably too early, i could have waited till 30k miles.

.if not tracked change at 100k miles. rear diff at 50k miles per service manual. this Getrag dct is well known and well built.
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