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Gearbox and Diff oil recommendations please?
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- Lifer
- Posts: 3223
- Joined: Sun Feb 10, 2019 2:10 pm
- Location: Bristol/Bath
Gearbox and Diff oil recommendations please?
Afternoon all,
Going for an engine Oil, Gearbox oil and Diff oil change on my 30i manual. Have Mann filters already.
I’m ok on the engine oil front, but what’s the current thinking on the Diff oil and gearbox oil and how much do I need to order?
Going to get my garage around the corner to do it as too much of a faff on axle stands.
Going for an engine Oil, Gearbox oil and Diff oil change on my 30i manual. Have Mann filters already.
I’m ok on the engine oil front, but what’s the current thinking on the Diff oil and gearbox oil and how much do I need to order?
Going to get my garage around the corner to do it as too much of a faff on axle stands.
Alpina Roadster S Lux no. 204 (1 of 15 uk cars in Alpina Blue)
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
- bigwinn
- Lifer
- Posts: 4626
- Joined: Wed Jul 08, 2020 7:13 pm
- Location: Lincoln UK
- Contact:
Gearbox and Diff oil recommendations please?
If it’s the same as the m54 engines and a manual it’s a litre in each
Check your diff- later cars only had a full plug, not a drain and fill so you have to suck the old oil out
Gearbox is 75w80 and gearbox 75w90 from memory but whatever brand you go for it will be better than the slop that’s in there!!
Stuart
Check your diff- later cars only had a full plug, not a drain and fill so you have to suck the old oil out
Gearbox is 75w80 and gearbox 75w90 from memory but whatever brand you go for it will be better than the slop that’s in there!!
Stuart
If the forum helped you, why not help the forum back. Thats the Z4 way!
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- Lifer
- Posts: 3223
- Joined: Sun Feb 10, 2019 2:10 pm
- Location: Bristol/Bath
Gearbox and Diff oil recommendations please?
I’ll leave the physical changing of fluids to the little garage around the corner, they’re old school… they’ll get the apprentice to suck it out with a big bendy strawbigwinn wrote: ↑Fri Mar 24, 2023 2:14 pm If it’s the same as the m54 engines and a manual it’s a litre in each
Check your diff- later cars only had a full plug, not a drain and fill so you have to suck the old oil out
Gearbox is 75w80 and gearbox 75w90 from memory but whatever brand you go for it will be better than the slop that’s in there!!
Stuart
Alpina Roadster S Lux no. 204 (1 of 15 uk cars in Alpina Blue)
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
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- Lifer
- Posts: 4047
- Joined: Sat May 25, 2013 8:27 pm
- Location: Stourbridge
Gearbox and Diff oil recommendations please?
I used Reline MT-LF, best oil so far for reasonable gear change.
Gone through BMW's, ATF, Sintopod finally Redline MT-LF which has been the best.
2 quarts (as it comes) is just enough for the manual gearbox.
Gone through BMW's, ATF, Sintopod finally Redline MT-LF which has been the best.
2 quarts (as it comes) is just enough for the manual gearbox.
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- Lifer
- Posts: 3223
- Joined: Sun Feb 10, 2019 2:10 pm
- Location: Bristol/Bath
Gearbox and Diff oil recommendations please?
Great, thanks
Alpina Roadster S Lux no. 204 (1 of 15 uk cars in Alpina Blue)
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
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- Senior Member
- Posts: 2552
- Joined: Fri May 26, 2017 3:40 pm
- Location: Plymouth
Gearbox and Diff oil recommendations please?
As per the BMW manual bud - ALWAYSTrue-Blue wrote: ↑Fri Mar 24, 2023 1:58 pm Afternoon all,
Going for an engine Oil, Gearbox oil and Diff oil change on my 30i manual. Have Mann filters already.
I’m ok on the engine oil front, but what’s the current thinking on the Diff oil and gearbox oil and how much do I need to order?
Going to get my garage around the corner to do it as too much of a faff on axle stands.
Mark
Plymouth
E89
35i
Carmine Red
Black leather
Plymouth
E89
35i
Carmine Red
Black leather
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- Lifer
- Posts: 3223
- Joined: Sun Feb 10, 2019 2:10 pm
- Location: Bristol/Bath
Gearbox and Diff oil recommendations please?
BMW don’t recommend the gearbox and diff oil is changed.mcbutler wrote: ↑Sat Mar 25, 2023 9:03 pmAs per the BMW manual bud - ALWAYSTrue-Blue wrote: ↑Fri Mar 24, 2023 1:58 pm Afternoon all,
Going for an engine Oil, Gearbox oil and Diff oil change on my 30i manual. Have Mann filters already.
I’m ok on the engine oil front, but what’s the current thinking on the Diff oil and gearbox oil and how much do I need to order?
Going to get my garage around the corner to do it as too much of a faff on axle stands.
Alpina Roadster S Lux no. 204 (1 of 15 uk cars in Alpina Blue)
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
Previous Z4’s :E89 30i, E89 20i, E85 3.0Si (X4) E85 3.0i, E86 3.0 Si, E85 2.5si, E85 2.5i
- smorris_12
- Member
- Posts: 902
- Joined: Mon Apr 18, 2022 2:14 pm
- Location: Somerset
Gearbox and Diff oil recommendations please?
There's nothing magic about diffs or manual gearboxes so there's no reason *not* to change the oil if an owner is feeling conscientious. However, they genuinely are lifetime oils - they'll easily last 20 years without chemically breaking down and reducing their efficacy. BMWs stance is that if there is a mechanical failure it won't be the fault of the oil so there's no need to change it.
I have done various ones over the years and the BMW ones come out quite clean. There's no breathers so water doesn't get in unlike Discos I've done where a brown emulsion slops out.
I have done various ones over the years and the BMW ones come out quite clean. There's no breathers so water doesn't get in unlike Discos I've done where a brown emulsion slops out.
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Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
- Rucky
- Member
- Posts: 396
- Joined: Wed Jan 23, 2019 3:07 pm
- Location: Glos, England
Gearbox and Diff oil recommendations please?
Just use the official Castrol Site they explain exactly what is recommended - Transmax or Syntrax etc, grades and quantities by Registration :
https://www.castrol.com/en_gb/united-ki ... ype=retail
https://www.castrol.com/en_gb/united-ki ... ype=retail
04 2.5i Titan silver - 1st Z4 now sold on
07 3.0si Silver Grey M Sport pak.
X5 and assorted motorbikes
07 3.0si Silver Grey M Sport pak.
X5 and assorted motorbikes
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- Lifer
- Posts: 4047
- Joined: Sat May 25, 2013 8:27 pm
- Location: Stourbridge
Gearbox and Diff oil recommendations please?
I know when i first dropped the gearbox oil i used a ramp belonging to a chap that specialised in Land Rover repairs.
He recognised the fluid that came out as the same ATF Land Rover use.
He recognised the fluid that came out as the same ATF Land Rover use.
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- Lifer
- Posts: 4047
- Joined: Sat May 25, 2013 8:27 pm
- Location: Stourbridge
Gearbox and Diff oil recommendations please?
No mention of manual transmission oil req.Rucky wrote: ↑Sun Mar 26, 2023 2:03 pm Just use the official Castrol Site they explain exactly what is recommended - Transmax or Syntrax etc, grades and quantities by Registration :
https://www.castrol.com/en_gb/united-ki ... ype=retail
- Rucky
- Member
- Posts: 396
- Joined: Wed Jan 23, 2019 3:07 pm
- Location: Glos, England
Gearbox and Diff oil recommendations please?
No mention of manual ????
It clearly recommends Syntax.
It clearly recommends Syntax.
04 2.5i Titan silver - 1st Z4 now sold on
07 3.0si Silver Grey M Sport pak.
X5 and assorted motorbikes
07 3.0si Silver Grey M Sport pak.
X5 and assorted motorbikes
- Rucky
- Member
- Posts: 396
- Joined: Wed Jan 23, 2019 3:07 pm
- Location: Glos, England
Gearbox and Diff oil recommendations please?
Sorry se what you mean!
04 2.5i Titan silver - 1st Z4 now sold on
07 3.0si Silver Grey M Sport pak.
X5 and assorted motorbikes
07 3.0si Silver Grey M Sport pak.
X5 and assorted motorbikes
- Rucky
- Member
- Posts: 396
- Joined: Wed Jan 23, 2019 3:07 pm
- Location: Glos, England
Gearbox and Diff oil recommendations please?
Sorry se what you mean!
04 2.5i Titan silver - 1st Z4 now sold on
07 3.0si Silver Grey M Sport pak.
X5 and assorted motorbikes
07 3.0si Silver Grey M Sport pak.
X5 and assorted motorbikes