02-24-2020, 06:16 PM | #1 |
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Differential Oil
Have a 16' 235i manual non LSD. I researched online weight for rear diff. oil. Got a few numbers back, so went by BMW and chatted with service manager and parts guys...they said def. 75W85.
When I look and search online, Redline (and others) comes up with 75W85. https://www.ecstuning.com/b-redline-...art/50104~red/ Note: Redline 75W85 is extremely slippery, and as a result is not recommended for manual transmissions with synchronizers. Don't all manual BMW's have synchronizers ? Thought I researched online lol I could go over pay for OEM at BMW, but trying to reconcile this. |
02-24-2020, 06:29 PM | #2 |
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are you doing rear differential or the six speed manual gearbox ?
I know Honda FRONT ENGINE with TRANSAXLE work best with Honda specific gear oil. BMW fluid is certainly not a bad way to go. |
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02-24-2020, 06:47 PM | #3 |
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well both, but question was about rear differentia, sorry LSD mattered lol
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02-25-2020, 08:24 PM | #4 |
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if you want to stick with redline they make a MT75W85 for manual trans with all the correct additives to protect the brass synchronizers. Then use the gear oil 75W85 for the rear diff
Last edited by pmcmtnbkr; 02-25-2020 at 09:23 PM.. |
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