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      03-14-2013, 05:51 AM   #1
lemonukas
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Gear box oil?

Which one is the best for manual gear box?
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      03-14-2013, 08:54 AM   #2
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The grades below are as BMW spec for the 335i, so check your grade spec for your gearbox and diff,

The brands below are top quality full synthetics, I used them after reccomendations on here:

Gearbox oil - 2 litres of Fuchs TITAN SINTOFLUID SAE 75W-80 synthetic

Diff oil - 2 litres of Fuchs Titan Race SYN 5 75W-90 Fully Synthetic Gear Oil


After changing the box oil I really noticed an improvement in shift feel and smoothness.
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      03-14-2013, 09:04 AM   #3
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Thanks
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      03-14-2013, 11:08 AM   #4
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Do you just change it in the normal way on a sealed box? Mine has "sealed for life" on it.

Cheers
G.
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      03-14-2013, 11:15 AM   #5
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Its not a sealed box, just BMW reckon you don't need to change the oil ever, probably right technically, but it can't hurt though, and mine felt a lot smoother when changed for a top notch oil at 42k.

It still has a drain plug underneath and a filler/level plug on the side.
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      03-14-2013, 12:11 PM   #6
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Isn't there a service kit to buy?
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      03-14-2013, 12:30 PM   #7
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Isn't there a service kit to buy?
Possibly for the auto, but not for the manual.
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      03-15-2013, 03:41 AM   #8
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Mine seems abit notchy but thought this was normal. Maybe i should look into this aswell.
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      03-15-2013, 05:22 AM   #9
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That's why I will thinking to change oil. And my car is over 70k miles and is good time to change. I don't believe in anything in long life if is not maintain properly. If was build 20- 30 years ago then probably
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      03-15-2013, 07:05 AM   #10
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I changed the diff oil at the same time, I have the quiafe LSD and Birds BMW recommended changing the quaife oil after 30K.
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      03-15-2013, 08:34 AM   #11
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Quote:
Originally Posted by hobo mofo View Post
Mine seems abit notchy but thought this was normal.
Mine's the same. Tried new oil with no improvement. About to fit revised mounts:

http://www.ca-int.co.uk/single_prod.php?prod_id=201
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      03-15-2013, 08:56 AM   #12
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Phil325i let us know if you will install these revised mounts if is any improvement?
What oil did you use?
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      03-15-2013, 09:10 AM   #13
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Quote:
Originally Posted by Phil325i View Post
Mine's the same. Tried new oil with no improvement. About to fit revised mounts:

http://www.ca-int.co.uk/single_prod.php?prod_id=201
I ordered the same mounts last week, they'll be going on with a new clutch in a few weeks....
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      03-15-2013, 03:13 PM   #14
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Originally Posted by lemonukas View Post
Phil325i let us know if you will install these revised mounts if is any improvement?
What oil did you use?
Will do. I used this:

http://www.opieoils.co.uk/p-981-fuch...ion-fluid.aspx
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      03-15-2013, 04:31 PM   #15
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Thanks
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      03-16-2013, 04:31 AM   #16
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Quote:
Originally Posted by Phil325i View Post
Mine's the same. Tried new oil with no improvement. About to fit revised mounts:

http://www.ca-int.co.uk/single_prod.php?prod_id=201
This sounds interesting. Let us know how you get on with these as i may give these a go if you feel they have improved things.
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      03-21-2013, 08:45 AM   #17
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Quote:
Originally Posted by hobo mofo View Post
This sounds interesting. Let us know how you get on with these as i may give these a go if you feel they have improved things.
OK, uprated MT mounts fitted. The effect? Not staggering, but enough. Takes out all the left/right slop and changes are now more 'switch-like'. The best compliment I can pay is that changing gear is now something I just forget about, whereas before I was constantly aware of the notchiness and poor change quality.

Bear in mind though that mine is MSport spec, which I believe has a shorter throw and stubbier knob than the SE as standard, so the effects might be different with another model.

Worth the money? Hmmmm maybe - useful mod, but probably a bit overpriced for what they are. Just my five penn'orth...

Next job...replace the CDV valve!
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      03-21-2013, 09:08 AM   #18
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Nice work Phil,

I've got he mounts coming, so hopefully it will tighen things up a bit.

+1 the Msport has a slightly shorter 'knob' but the shift arm & mech is identical between models, so throw angle is the same across model.

I've got the BMW Perf short shift kit, which has a whole new shift arm that changes the linkage geometry, giving a much shorter angle of movement. It also has a stiffer vibration damping section in the two part shift arm.

It has a nice bolt-like action, so I hope these new mounts will make it even better!
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Last edited by doughboy; 03-21-2013 at 09:14 AM.
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      03-21-2013, 01:22 PM   #19
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Quote:
Originally Posted by Phil325i View Post
OK, uprated MT mounts fitted. The effect? Not staggering, but enough. Takes out all the left/right slop and changes are now more 'switch-like'. The best compliment I can pay is that changing gear is now something I just forget about, whereas before I was constantly aware of the notchiness and poor change quality.

Bear in mind though that mine is MSport spec, which I believe has a shorter throw and stubbier knob than the SE as standard, so the effects might be different with another model.

Worth the money? Hmmmm maybe - useful mod, but probably a bit overpriced for what they are. Just my five penn'orth...

Next job...replace the CDV valve!

Great review, i will pick a set up. Will these fit an pre lci e90? (just to be 100% certain) Also, are these relatively easy to fit?
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      03-21-2013, 06:10 PM   #20
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Originally Posted by hobo mofo View Post
Great review, i will pick a set up. Will these fit an pre lci e90? (just to be 100% certain) Also, are these relatively easy to fit?
Yes they will fit. DIY guide here:

http://www.e90post.com/forums/showthread.php?t=804839

plus if you're buying the mounts made by Rogue Engineering, you'll receive fitting instructions with the goods.
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      03-22-2013, 03:15 AM   #21
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Quote:
Originally Posted by Phil325i View Post
Yes they will fit. DIY guide here:

http://www.e90post.com/forums/showthread.php?t=804839

plus if you're buying the mounts made by Rogue Engineering, you'll receive fitting instructions with the goods.
Thanks for that Phil. Looks abit too involved for me to do it by myself lol
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      03-22-2013, 03:26 AM   #22
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Thanks for that Phil. Looks abit too involved for me to do it by myself lol
Seriously looks worse than it is. Took me about 20 mins...but if you're not confident, get a good indy to do it for you.
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