06-08-2021, 11:46 PM | #24 |
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Ok copy that, I will look into redline dctf next time around. Hopefully the feel is even further improved.
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06-10-2021, 10:16 AM | #25 |
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would redline DCTF have warranty implications? being that i'm on my second gearbox....and the first one went bad for no reason (i did NOT abuse the car or track it, 8k miles in LA traffic).
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06-10-2021, 11:51 AM | #26 |
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I typically change the transmission (and differential) fluids every 30K.
On my OG M2, I did both at 15K and will probably do 15K intervals. It's cheap, it doesn't hurt anything and it makes me feel good. I'll probably drive 15K miles every 3 years and I plan to keep the car forever (unless some idiot runs into me and totals it, like my last BMW). I always do UOA on the engine oil, but I don't bother with the transmission or differential fluid because I know my schedule is overkill. |
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06-10-2021, 01:21 PM | #27 |
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I would think it does, because bmw specifies MTF lt5 (as the only suitable replacement, unlike oil where you have a choice if it's LL01 approved. Dctf is also suitable for MTF lt5 applications as per redline but it's not bmw approved. I actually haven't been able to find a bmw approved MTF through ista either so I don't think bmw wants you using anything except MTF lt5, even the pentosin equivalent isn't approved and bmw MTF is a rebranded pentosin fluid.
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06-10-2021, 04:50 PM | #28 | |
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06-11-2021, 02:54 AM | #29 |
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06-11-2021, 03:10 AM | #30 |
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Yeah it's an easy job just be careful, I stripped my drain plug (got it fixed and seaked in a valve so future fluid changes will be really easy) for some reason and another forum member here rounded the hex on his fill port. So yeah be very careful.
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08-19-2021, 09:55 AM | #31 |
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has anyone posted how to do this? Change the transmission fluid.... and gear oil?
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08-19-2021, 01:25 PM | #32 |
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Look at the m4 diy same trans and diff as the m2.....
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08-19-2021, 09:28 PM | #34 |
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Thank you for the video link.
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Last edited by vrooooom; 08-19-2021 at 09:36 PM.. |
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09-10-2021, 08:28 PM | #35 | |
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09-10-2021, 08:46 PM | #36 | |
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09-10-2021, 09:45 PM | #37 |
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Are we sure the DCTF is good for the gearbox long term?
I would probably wait till it's out of warranty personally, although I guess an SSK would make a warranty claim very tough also... |
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09-10-2021, 11:00 PM | #38 | |
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The reason for this is because MTF LT5 is a really low viscosity oil exactly like dctf is. If you are on warranty you should use factory fluids - obviously lol.
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09-10-2021, 11:18 PM | #39 | |
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I guess it's fine if MTF-LT-5 is really equivalent to Pentosin FFL-3. |
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09-10-2021, 11:36 PM | #40 | |
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MTF LT5 should be rebranded pentosin FFL3, pentosin does make it for bmw and they share the exact same container too (if you get the genuine German bottles, I believe the stuff in the states is made in the US so you also get different bottles and different oil). But either way yeah it should be the same oil as pentosin.
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09-11-2021, 12:02 PM | #42 |
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Changed my mtf and diff fluid this morning at 38k miles 5 years. MTF was a little darker. Diff fluid looked a lot cleaner. Pretty easy job to do both at the same time, just make sure your jack stands are secure. Used saf-Xj for the diff and mtf-lt-5 for the trans.
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10-06-2021, 12:34 AM | #43 |
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did mine at 1700mi after getting transmission replaced, used OEM fluid, shift action for sure smoother, rented a lift for $40/hr and did both engine oil and tranny oil in that time...super easy job, worth it for cheap insurance.
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10-06-2021, 05:46 AM | #44 |
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I had mine done at break-in, cost me $200 or so, why not. They used to do it when it was part of the better maintenance program.
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