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M2 Technical Topics > Mechanical Maintenance: Break-in | Oil & Fluids | Servicing | TSB | Recalls > First run in service for 6-MT

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      01-30-2017, 08:52 AM   #1
M2wolf
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Hi all

Planning to bring my m2 for its first run in service.

It'll be in early, ie 1100 miles as opposed to 1200. Dealership said it's fine.

I'd like to know what will be carried out for the 6 speed manual?

Would be good to know which oils and if any unlocking of performance features for the manual transmission would be handy!

Thanks.
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      01-30-2017, 11:37 AM   #2
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Dealer got back:

The running in service consist of an oil and filter change using BMW approved shell 0w 30 oil.

Rear differential oil is replaced with BMW part number oil.

Running in mode is also deactivated that could change rev range but unsure of any performance enhancement.

Transmission fluid change not included for 6MT. As lifetime oil was used.
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      01-30-2017, 07:27 PM   #3
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0W-30 Oil Consideration

Have you ever considered that the normal operating temp on an N55 / N55 Variant is on average 228-238F pending on outside air temps and driving style. (My observations on my N55)

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Oil viscosity temps are taken at 100C or 212 F. So at 212 F the oil (30wt) is up to 12.5cst thick (max for any 30wt oil) however, your car sees 228 - 238 F just driving around town on a 50F day. Now that same oil at 230 F -- gets almost as thin as a 20wt oil and at 240F (summer driving) the oil has a hard time providing the film and bearing strength to keep your car protected. Plus you have a car that is Direct Injected where fuel dilution can further lower the viscosity.
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So - for winter the 0W-30 may be the right oil -- but a 40WT just may be the better choice for summer. I am thinking 0W-40 or 5W-40 year around depending on where you live unless fuel economy is a top criteria.

A 12cst thick oil at operating temp is optimal for the N55 and it is interesting that at 230F a 40Wt oil (on average) runs a viscosity of 12cst.


Cheers,
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      01-31-2017, 09:36 AM   #4
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I will be tracking my M2 so at least a 40 WT oil. I also track a Corvette C7 and GM recommends Mobil 1 15-50 for track use. Does BMW actually recommend a specific oil for track days?
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      01-31-2017, 01:37 PM   #5
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Is it worth paying extra to change the transmission fluid? As its not covered.
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      01-31-2017, 02:58 PM   #6
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BMW highly recommend you do not change the transmission oil on the DCT. Due to the way they work there is a very real risk of a short fill.

As for the manual it's personal preference. BMW/MINI are on a crusade to reduce the amount of services a vehicle needs in its lifetime/100k miles. It's in their interest to convince you of the idea of 'lifetime' oils. As such they will never cover lifetime items under warranty or service plans.

That said, I've build more than a few engines and gearboxes and I do not believe in such mystical things as service free gearbox/fuel filter/engine oil.

It's entirely your call but my dealer charged me £48 for the gearbox oil - but I missed a gear change while being a little to enthusiastic Who wants small pieces of metal in their gearbox oils for 100k miles?

I drive my cars HARD so change my fluids every 8k rather than the 16k on the service plan. If you've only going to keep it three years rag the fuck out of it, do hard pulls and let the other guy worry about it post warranty. If you have even the slightest inclination to keep it my vote is to look after it.

Last edited by CommitConfirm; 02-01-2017 at 11:49 AM..
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      02-23-2017, 12:39 AM   #7
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Word of warning to DCT owners and MT owners.

I don't suggest you adhere to the BS of "lifetime" fluids. I had an E46 automatic that also had a "lifetime" transmission fluid. At around 90k miles, sure enough the valve body went out (I couldnt go into reverse gear, made parking very interesting), shops were quoting $2500 for the repair. Luckily I found a shop in Florida that rebuilt the valve bodies for $600 + your core. I did the repair myself, it was pretty easy.

Moral of this story is I'll be changing my transmission fluids around 50k miles on my own dime. If you think it is a difficult procedure, I'd suggest you pay the dealership to do it.
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      02-23-2017, 12:24 PM   #8
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I think the guy who writes Tech Talk for Roundel, and the guy who used to write for Bimmer, say that "lifetime fill" is bs. I pay no attention to BMW recommendations for long change intervals. The worst I am doing is dropping a little unnecessary dough. The best is far better than that.
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      02-23-2017, 01:00 PM   #9
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I plan to get transmission oil changed on my MT at the 1200 mile service. Should I tell them not to reset the service interval after completion?
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      02-23-2017, 02:23 PM   #10
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Quote:
Originally Posted by CommitConfirm View Post
BMW highly recommend you do not change the transmission oil on the DCT. Due to the way they work there is a very real risk of a short fill.
Can you expand on this a bit? I have a E70X5 that I should have changed and now at 108K, I'm more afraid of a problem resulting from the change.

On the M2, I plan to have the DCT serviced every ~50K.
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