[F87source]

Originally Posted by Track/S

You don't know what that cover is used for so don't say things you have no idea, I guess you also use ista to go defecate.

The GTS technical documents say it's for aerodynamic purposes, which is exactly what I said it was used for.


Proof:



Additionally: https://autocouturemotoring.com/prod...nt-plate-cover



Hmm guess I do know what I'm talking about, can't say the same about you though.... You should probably stop talking before you continue to humiliate yourself.

[F87source]

Originally Posted by doughboy

Just a bit! Many thanks for taking the time to post all that.

I recently upgraded ISTA but now it won't connect to the car, spending too much of my life trying to find out why...

No problem! Glad I could help, it's really useful to have ISTA, and that way you don't have to rely on second hand sources of information - which may or may not be correct.


Check your settings in ISTA and ensure it's configured for a wired or wireless connection (whatever you have).

[Track/S]

Originally Posted by F87source

The GTS technical documents say it's for aerodynamic purposes, which is exactly what I said it was used for.

You are very tired with the fuc..g gts cover plate, nobody is talking or cares about it, it continues to be embarrassing.

I don't want to imagine if you run out of internet for a month, you must have a heart attack

[F87source]

Originally Posted by Track/S

You are very tired with the fuc..g gts cover plate, nobody is talking or cares about it, it continues to be embarrassing.

I don't want to imagine if you run out of internet for a month, you must have a heart attack

Strange I thought you said I have no idea what the cover was for? Or was that projection for yourself?


Also Google red herring fallacy, because that's what you're doing right now.

[F87source]

Originally Posted by E90convert

Actually... the friction material is MoS2... which is non-magnetic. The contamination generated by the LSD and more severe ///M duty cycles may be damaging to the bearings and oxidize the oil faster which necessitates the diff oil change interval. Anecdotally, magnets are always helpful to pull the iron out of the oil. Helps with cleanliness and oil oxidation.

I just saw this now, not sure why my notifications didn't work.

But I disagree with this, the clutch pack friction material isn't all MoS2, I don't even know if it is used in clutches to begin with, as I could only find this being used as a lubricant or friction reducer in fluids and additives, but not in clutches.

According to friction materials:https://www.frictionmaterials.com/cl...0in%20clutches.

Clutches are generally composed of: Ceramic, copper, steel, iron, mineral, cellulose, aramid, chopped glass, rubber and brass fivers are all used in the creation of composite materials used in clutches. And iron is absolutely magnetic. This is where all the black gunk comes from on differential magnetic drain bolts.


Also, Iron as an additive in oil is barely present (at most 1-2 ppm) and that is not going to be enough to account of all the black debris on drain plugs. Iron also isn't going to be the main anti-oxident agent in oil, ZDDP (zinc) is one of the most potent anti oxidants in oil and it is always present in way higher levels than iron is. SAPS are also common antioxidative additives, and these again are present in very high amounts in oil (even more than ZDDP).

But iron is never really relied upon as an antioxidant, nor as a detergent (that is what the other additives are for, iron is so sparsly present in oil that is is probably the least useful additive in oil).



Here is a paper talking about it: https://www.lubesngreases.com/magazi...n-engine-oils/

and also talking about potential alternatives to ZDDP as oil compositions change to meet more evironmentally friendly targets.

[E90convert]

Aside from the benchmarking we did at my work on the axle, BMW even says it’s Moly based in the technical documents. The clutch plates themselves are steel, and they are coated in MoS2 to reduce friction. I’ve seen the scanning electron microscope element measurement plots!

Never heard of iron being used as an additive. I’m familiar with its role as a wear particle and an oxidizer.

[doughboy]

What about this for diff oil or just stick OE?

[doughboy]

What about this for diff oil or just stick OE?

[F87source]

Originally Posted by doughboy

What about this for diff oil or just stick OE?

I would stick with genuine bmw, and since you're in the UK you most likely can get MSP/A. North America has switched to SAF-XJ now.

[F87source]

Originally Posted by doughboy

What about this for diff oil or just stick OE?

So for the diff get this:







For the 6mt get redline dctf or motul dctf high torque, because the gear box seems to not be too picky about what oil it takes, and the stock fluid seems to degrade too quickly and these aftermarket fluids noticably improve shift feel.

[doughboy]

Originally Posted by F87source

So for the diff get this:


For the 6mt get redline dctf or motul dctf high torque, because the gear box seems to not be too picky about what oil it takes, and the stock fluid seems to degrade too quickly and these aftermarket fluids noticably improve shift feel.

Yes we can get the MPS/A no problem.

I noticed the MTF-LT5 oil spec brings up various DCTFs which advertise as Dual Clutch Transmission Fluids?

They say for Dual clutch boxes, but they also list MTF-LT5 as an approval... I suppose gears are gears and as long is it doesn't upset wet clutches in wet DCTs it will do DCT or Manual versions.

I noticed the regular Motul DCTF has MTF-LT5 approval, but the Hi Torque version does not?

I an get redline DCTF for same price as Motul Hi Torque and redline is full syn and lists MTF-LT5

[F87source]

Originally Posted by doughboy

Yes we can get the MPS/A no problem.

I noticed the MTF-LT5 oil spec brings up various DCTFs which advertise as Dual Clutch Transmission Fluids?

They say for Dual clutch boxes, but they also list MTF-LT5 as an approval... I suppose gears are gears and as long is it doesn't upset wet clutches in wet DCTs it will do DCT or Manual versions.

I noticed the regular Motul DCTF has MTF-LT5 approval, but the Hi Torque version does not?

I an get redline DCTF for same price as Motul Hi Torque and redline is full syn and lists MTF-LT5

That's great! Buy the MSP/A then.

Yes, because MTF-LT5 is actually a low viscosity DCTF, hence why DCTF fluid satisfies the requirements to be MTF-LT5.

I remember chris719 talked to motul and they said their Hi torque version should be MTF-LT5 compatible. But the reason why you should get Hi Torque over regular motul dctf is because it is a better base stock oil. But redline dctf is just as good if not better imo (and alot of guys on the forum are using it with great success), so get whatever is easiest/cheapest. If it were me I would get the redline dctf - which I am planning to do later this year or next year.

[doughboy]

Great thanks, I'll get the red line then.

I use an independant workshop, but I buy all the fluids myself in advance and take them along and they just use them so I know exactly what's going in.

Also be sending samples away for analysis as its 5yo now, make sure there's nothing in the oil that shouldn't be there.

[F87source]

Originally Posted by doughboy

Great thanks, I'll get the red line then.

I use an independant workshop, but I buy all the fluids myself in advance and take them along and they just use them so I know exactly what's going in.

Also be sending samples away for analysis as its 5yo now, make sure there's nothing in the oil that shouldn't be there.

Sounds good! keep us posted!

Don't forget to buy new drain and fill bolts for the diff.

[doughboy]

Does the gearbox need new fill/drain bolts too?

[F87source]

Originally Posted by doughboy

Does the gearbox need new fill/drain bolts too?

No it doesn't, it doesn't have a drain or fill washer either.

[doughboy]

Yeah I noticed gearbox plugs have no o-ring or washer, but the diff ones do.

Suppose "officially" the gearbox is sealed for life so of course no one will ever need to remove the plugs...

[F87source]

Originally Posted by doughboy

Yeah I noticed gearbox plugs have no o-ring or washer, but the diff ones do.

Suppose "officially" the gearbox is sealed for life so of course no one will ever need to remove the plugs...

Lol!

But strangely the gear box seals well without the washers or o-rings.

[Westersund]

Originally Posted by F87source

For the 6mt get redline dctf or motul dctf high torque, because the gear box seems to not be too picky about what oil it takes, and the stock fluid seems to degrade too quickly and these aftermarket fluids noticably improve shift feel.

According to Motul's website they recommend DCTF for the MT and DCTF High Torque for the DCT. But I'm sure the High Torque works as well. I use the regular Motul DCTF in my car and it works just as well as with the stock oil.

[Westersund]

Originally Posted by doughboy

Yeah I noticed gearbox plugs have no o-ring or washer, but the diff ones do.

Suppose "officially" the gearbox is sealed for life so of course no one will ever need to remove the plugs...

You can re-use the diff plugs as well as long as the o-ring sits proud, if it doesn't you can always change the o-ring only.

[doughboy]

Originally Posted by Westersund

You can re-use the diff plugs as well as long as the o-ring sits proud, if it doesn't you can always change the o-ring only.

I'm sure you can, but as it's only £3 for the OE plug and o-ring I'd rather just get new ones.

Easier than hunting for an o-ring on the day.

[F87source]

Originally Posted by Westersund

According to Motul's website they recommend DCTF for the MT and DCTF High Torque for the DCT. But I'm sure the High Torque works as well. I use the regular Motul DCTF in my car and it works just as well as with the stock oil.

chris719 messaged motul directly and they did say that the high torque was suitable for the MTF-LT5 requirements as well, so that's why he is using it on the 6MT.