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Gearbox / diff oil

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Simon 3.2M
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Gearbox / diff oil

Post by Simon 3.2M » Wed Aug 15, 2018 2:00 pm

I'm going to change both however I can't to seem to find the specs when I do a search - can you guys recommend the oils specs and amount for each please. TIA
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R60BBA
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Gearbox / diff oil

Post by R60BBA » Wed Aug 15, 2018 2:23 pm

Gearbox - Redline MTL 70w-80 GL4 (1.7 litres)

Differential - Castrol Syntrax LSD 75W 140 (1.2 litres)
Current: 2002 E46 M3
Current: 2004 R53 Cooper S
Current: 2005 997 Carrera S
Gone: 1998 E31 840Ci Sport
Gone: 2007 Z4 E86 3.0Si Sport
Gone: 2001 Z3 E36/7 2.2i San Remo Individual
Gone: 2015 F21 116d M Sport
Gone: 2012 A3 Sportback 1.2TFSI

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GuidoK
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Gearbox / diff oil

Post by GuidoK » Wed Aug 15, 2018 2:40 pm

Be sure to first loosen the fill plugs and then the drain plugs (if you cant loosen the fill plugs you have a big problem with the oil drained out)
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Simon 3.2M
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Gearbox / diff oil

Post by Simon 3.2M » Wed Aug 15, 2018 3:23 pm

GuidoK wrote: Wed Aug 15, 2018 2:40 pm Be sure to first loosen the fill plugs and then the drain plugs (if you cant loosen the fill plugs you have a big problem with the oil drained out)
Thanks pal, I always do that but it's great advice and much appreciated.
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Gearbox / diff oil

Post by Bodyboarder » Wed Aug 15, 2018 3:47 pm

I’d stick with genuine Bmw stuff .... the previous owner put in millers / something else for the gear/diff ... correct grade and everything . After having my ins 2 done with correct Bmw stuff the gearbox felt very very much better for it . Smoother .

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R60BBA
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Gearbox / diff oil

Post by R60BBA » Wed Aug 15, 2018 3:56 pm

Bodyboarder wrote: Wed Aug 15, 2018 3:47 pm I’d stick with genuine Bmw stuff .... the previous owner put in millers / something else for the gear/diff ... correct grade and everything . After having my ins 2 done with correct Bmw stuff the gearbox felt very very much better for it . Smoother .
When did the previous owner change the transmission oils?
Current: 2002 E46 M3
Current: 2004 R53 Cooper S
Current: 2005 997 Carrera S
Gone: 1998 E31 840Ci Sport
Gone: 2007 Z4 E86 3.0Si Sport
Gone: 2001 Z3 E36/7 2.2i San Remo Individual
Gone: 2015 F21 116d M Sport
Gone: 2012 A3 Sportback 1.2TFSI

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Gearbox / diff oil

Post by Bodyboarder » Wed Aug 15, 2018 3:59 pm

About 1500 miles before the ins 2 .... so still very new . Couldn’t believe the difference to be honest

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R60BBA
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Gearbox / diff oil

Post by R60BBA » Wed Aug 15, 2018 4:10 pm

That’s very interesting :tumbleweed:
Current: 2002 E46 M3
Current: 2004 R53 Cooper S
Current: 2005 997 Carrera S
Gone: 1998 E31 840Ci Sport
Gone: 2007 Z4 E86 3.0Si Sport
Gone: 2001 Z3 E36/7 2.2i San Remo Individual
Gone: 2015 F21 116d M Sport
Gone: 2012 A3 Sportback 1.2TFSI

Simon 3.2M
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Gearbox / diff oil

Post by Simon 3.2M » Wed Aug 15, 2018 4:13 pm

Castrol 75w 140 from ECP 😊
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Gearbox / diff oil

Post by Bodyboarder » Wed Aug 15, 2018 4:15 pm

R60BBA wrote: Wed Aug 15, 2018 4:10 pm That’s very interesting :tumbleweed:
Yep it’s very odd but just saying my experience with it :thumbsup:

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mr wilks
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Gearbox / diff oil

Post by mr wilks » Wed Aug 15, 2018 5:28 pm

Bodyboarder wrote: Wed Aug 15, 2018 3:47 pm I’d stick with genuine Bmw stuff .... the previous owner put in millers / something else for the gear/diff ... correct grade and everything . After having my ins 2 done with correct Bmw stuff the gearbox felt very very much better for it . Smoother .
The 65k ZMR i recently bought had really baulky - notchy gearchange from the off through 1st & 2nd whereas both previous 2 ZMRs were slick , light & easy through all gears .
I had the cdv removed & also had g box & diff oils changed to Millers & it was like driving a different car afterwards .
Fresh Bmw fluids may well have had similar effect but im happy as is
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Gearbox / diff oil

Post by Bodyboarder » Wed Aug 15, 2018 6:01 pm

I also had the cdv mod at the same time ... so this could have also had a bearing in it . I have millers in all my other cars , it’s good stuff . Just my experience that’s all :thumbsup:

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mr wilks
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Gearbox / diff oil

Post by mr wilks » Wed Aug 15, 2018 6:10 pm

Bodyboarder wrote: Wed Aug 15, 2018 6:01 pm I also had the cdv mod at the same time ... so this could have also had a bearing in it . I have millers in all my other cars , it’s good stuff . Just my experience that’s all :thumbsup:
Id say it was most likely the cdv that did it , ive changed box & diff oils along the way in previous Z4 Si . Z4Ms on wildly differening mileages with no immediate difference but a E89 23i on 127k that was notchy in 1st & 2nd when cold was improved significantly with a change of oil in the gearbox :? that was original fluid i suspect & Millers went in
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Gearbox / diff oil

Post by mmm-five » Wed Aug 15, 2018 6:26 pm

My gearbox was great, all the way until I had my little accident, at which point it became notchy.

Insurance just kept saying they were known to be like that, and wouldn’t listen to my protestations...despite it being a fairly recent new clutch & flywheel.
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Simon 3.2M
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Gearbox / diff oil

Post by Simon 3.2M » Thu Aug 16, 2018 1:57 pm

I was going to change the input seal in the coming months however, I'm not sure if the centre bolt needs to be pre-loaded when it's tightened. Pelican doesn't state that it does though.
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Previous:
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