[DutchBoysRacing]

Hey all,

I am picking up my G87 M2 early next week. I am a huge track junkie and will be putting all 1150 miles on the car in the first week as I have some track days at the end of the month.

Would BMW have any issue with such a quick break in service? Basically I'm asking if they have a time restriction to avoid people doing what I am doing...

[JABCAT]

I just had mine done today at 1,135 mi. I purchased on 11/28. I scheduled it using the dealership's online appointment scheduler, showed up two hours early (I was driving from 3.5 hours away), and they got me right in. Took 2 hours on the dot.

[Carefree]

My CA and SA both said there are no time constraints on the first 1200 miles. They did, however, recommend continually varying speed keeping RPM under specified value. Apparently a big no no is setting cruise control at one speed for extended periods. YMMV

[DutchBoysRacing]

Originally Posted by Carefree

My CA and SA both said there are no time constraints on the first 1200 miles. They did, however, recommend continually varying speed keeping RPM under specified value. Apparently a big no no is setting cruise control at one speed for extended periods. YMMV

so I can't leave it on the dyno overnight

[Carefree]

Originally Posted by DutchBoysRacing

so I can't leave it on the dyno overnight

You could……………..

[RockCrusher]

Originally Posted by DutchBoysRacing

Hey all,

I am picking up my G87 M2 early next week. I am a huge track junkie and will be putting all 1150 miles on the car in the first week as I have some track days at the end of the month.

Would BMW have any issue with such a quick break in service? Basically I'm asking if they have a time restriction to avoid people doing what I am doing...

Have not heard of any issues with a break in service done at any time as long as the miles are around 1200. Show up with some couple of hundred miles less you might get some push back.

Bought my M2 April 14. May 23 had it in for an early oil/filter service with just 647 miles. This was a service I was paying for out of my pocket. All that was required was I book the service. I don't recall how far in advance I had to book it -- the dealer was busy -- but I seem to recall it was at least a week or so.

Then May 31 had the car back in for its 1200 break in service. As before I had to book the service some time in advance.

Just bought a 2024 230i xDrive Dec. 1. And the other day booked it in for a check of the alignment, an early oil/filter service (will have around 600 miles on the odometer), for Dec. 13. Dec. 13 was the first time slot available. Dealer busy.

So book your service ASAP to be sure the dealer can do the service when you want and prior to your track day.

[Kevin_The_Clean1]

Originally Posted by RockCrusher

Have not heard of any issues with a break in service done at any time as long as the miles are around 1200. Show up with some couple of hundred miles less you might get some push back.

Bought my M2 April 14. May 23 had it in for an early oil/filter service with just 647 miles. This was a service I was paying for out of my pocket. All that was required was I book the service. I don't recall how far in advance I had to book it -- the dealer was busy -- but I seem to recall it was at least a week or so.

Then May 31 had the car back in for its 1200 break in service. As before I had to book the service some time in advance.

Just bought a 2024 230i xDrive Dec. 1. And the other day booked it in for a check of the alignment, an early oil/filter service (will have around 600 miles on the odometer), for Dec. 13. Dec. 13 was the first time slot available. Dealer busy.

So book your service ASAP to be sure the dealer can do the service when you want and prior to your track day.

Why would you do this at only 647 miles... ?

[apez]

Also note that the diff oil is in limited supply, so get your appointment booked early in order to give the dealer time to get the oil.

[DutchBoysRacing]

I already booked my service! Just need to car to get to me from the VPC and then time to grind those miles out!

[Geighty7]

I did all my miles within the first hour of ownership

[RockCrusher]

Originally Posted by Kevin_The_Clean1

Why would you do this at only 647 miles... ?

Just like to change the engine oil early and even at 1200 miles I don't believe that's "early" enough.

When rebuilding engines the engine was started and run for 15 to 30 minutes at 2K RPMs or thereabouts. Rings seated in just a minute or so. The extra run time was mainly to ensure sufficient oiling of the cam/lifter hardware and let the cam/lifter interfaces complete their break in. Then the engine was shut off and the oil and filter changed.

So to run the engine even 600 miles is actually a bit unsettling to me.

[aerobod]

Originally Posted by RockCrusher

Just like to change the engine oil early and even at 1200 miles I don't believe that's "early" enough.

When rebuilding engines the engine was started and run for 15 to 30 minutes at 2K RPMs or thereabouts. Rings seated in just a minute or so. The extra run time was mainly to ensure sufficient oiling of the cam/lifter hardware and let the cam/lifter interfaces complete their break in. Then the engine was shut off and the oil and filter changed.

So to run the engine even 600 miles is actually a bit unsettling to me.

Although old school engine break-in still applies to more conventional performance engines (20 mins ring and cam bedding at 2500RPM with break-in oil, followed by an oil change, then another oil change after varied revs but not redline for another 1000km with break-in oil is typical), modern engine materials don't seem to have the same level of break-in wear.

Our 2017 M240i B58 engine had no noticeable wear materials such as fine metal or sealant particles in the filter when it was cut open at it's first oil service at an early 8,000km / 6 months before the first 1-year dealer service at 15,000km. In Europe a large proportion of vehicles go 2 years from the factory on synthetic oil before the first oil change without any effect on engine life.

The key S58 ring and cam break-in will be accomplished during engine checks on the production line, the filter will capture any wear material that would be detrimental and looks as though it has the capacity (going by the same/similar filter on out B58) to capture any wear material over the first 15,000km of life without any issues.

[JG13]

S58s have been around for years now. I trust BMW knows what they're doing with recommended break in procedures otherwise they would be blowing up by now.

[Kevin_The_Clean1]

Originally Posted by RockCrusher

Just like to change the engine oil early and even at 1200 miles I don't believe that's "early" enough.

When rebuilding engines the engine was started and run for 15 to 30 minutes at 2K RPMs or thereabouts. Rings seated in just a minute or so. The extra run time was mainly to ensure sufficient oiling of the cam/lifter hardware and let the cam/lifter interfaces complete their break in. Then the engine was shut off and the oil and filter changed.

So to run the engine even 600 miles is actually a bit unsettling to me.

I see what you're saying & it's great to error on the cautious side. But you can also kills things with kindness too. BMW says 1,200 miles for RIS because that's what they deem to be the appropriate window. At 600 miles that's WAY too soon.

[Kevin_The_Clean1]

Originally Posted by M2siast

It’s 2 services in 1,200 miles, to be safer. It might be overkill, but it can’t do harm, it can probably only do good.
One of these is “free”. The other one is paid for out of pocket.

I get what you're saying man. But 600 miles is still a touch too early. Wish one of the S58 engineers could chime in on this & set the record straight.

[Carefree]

I applaud Rockcrusher for caring enough about his car to do this. Overboard? Maybe. Unnecessary? Possibly. But in the grand scheme of things that $150 is a pittance for his peace of mind.

[Kevin_The_Clean1]

Originally Posted by M2siast

What harm do you think it could do?

No harm. But don't components inside the engine need to properly seat & be bed in... ? Not allowing this necessary early on preliminary process to take place as recommended seems to maybe go against the grain. So 1,200 miles is twice as long as it needs to be & much too far out in some regards... ?

[kyrix1st]

I believe BMW still uses the conventional "break-in engine oil" with special additives for bedding in the piston rings. So I would stick with the 1200-mile break-in under normal circumstances.

[Kevin_The_Clean1]

Originally Posted by kyrix1st

I believe BMW still uses the conventional "break-in engine oil" with special additives for bedding in the piston rings. So I would stick with the 1200-mile break-in under normal circumstances.

Exactly. This is the very same point that some people seem to keep missing & glancing past. We still have no idea what weight of the factory fill before the RIS is completed truly is. When the mind doesn't want to acknowledge thing it selectively chooses a different path. Sure it would cause no harm, but in the long run I don't think it's going to make a stronger engine. In fact, it might be a touch weaker.

[aerobod]

With the new pistons and camshafts I’m installing in my Caterham, the manufacturers quote the majority of ring and cam lobe break-in is accomplished in the first 20 minutes of running between 2000 and 3000RPM or 30km of moderate road use in those rev ranges. They then allow full-load dynomometer runs after that. This is with modern thin (1mm) low spring rate rings with a 45 degree cylinder wall cross-hatch pattern.

[RockCrusher]

Originally Posted by kyrix1st

I believe BMW still uses the conventional "break-in engine oil" with special additives for bedding in the piston rings. So I would stick with the 1200-mile break-in under normal circumstances.

That has to be some magical oil to allow just the right amount of wear yet avoiding excessive wear.

My experience is the rings break in (seat) within a minute or less time after firing up a rebuilt engine. Since the cylinder wall finish was done to what the factory called for and the rings were factory supplied rings I have to believe this ring seating time was similar to what a new fresh off the factory assembly line engine would experience.

The rebuilt engine was filled with the oil the factory recommended and was nothing special.

The rings seat because the cylinder bore finish is conducive to causing wear to the rings so they quickly make full contact with the cylinder.

At the same time the cylinder walls wear too. The cylinders do not wear smooth though. One can still see the crosshatch pattern in the cylinder wall. This provides depressions which retain oil and help prevent further metal to metal contact.

For non iron cylinder material the process is a bit different. But the end result is rings still seat and thus conform to the cylinder.

I'm hesitant about passing this on but I was told yesterday for the M engines they are run on a dyno before being installed in a vehicle.

I don't know how long.

Another car brand it was claimed its highest performance engines were run for 42 minutes. Not allowing any additional time to get the engine into the dyno and hooked up and then after the run disconnect the engine and remove it from the dyno and then change the oil/filter, for say a run of 10,000 engines this dyno run time represents 420,000 minutes, or 7000 hours, or 291 days.

Anyhow, I was told at the end of the time on the dyno the oil/filter is changed.

I have no details on if this is special oil or just plain old BMW oil. I would have to believe that it is plain old BMW oil.

If (big if) the above is the case then the M engines at least come with some run time. Not broken in (completely) but at least with the rings seated and I'm sure with some confidence the engine is free of issues and makes the advertised power. While the rings seat running on the dyno the engine is not broken in. That takes the engine in a vehicle and running and powering a vehicle over a span of time during which time it experiences a variety of loads which allow the break in process to progress to the point the engine is considered out of break in and ready for whatever...

And if (again big if) the above is the case then that can explain why there is nothing in the owners manual regarding a *premature* oil/filter service. There is no restriction necessary because there is no special oil/additive package being prematurely removed.

To be sure there are restrictions even after the engine has done its time on the dyno and is now in a vehicle. Mainly RPMs and vehicle speed restrictions. This is in recognition that a new engine (and drive train) has a higher level of friction and friction is heat. The limit on RPMs is to avoid a too high an engine speed that results in excessive heat causing a break down in oil and damaging say the cylinders/rings. But it can also compromise a cam lobe and lifter.

[DutchBoysRacing]

So my cars been stuck at the VPC for some reason. Its been over a week since it got to Oxnard VPC (12/7/2023). I know other forum members got their cars on the 10th and 11th from the same vessel + vpc.

If I go over my miles (1200) for break in, does it void my warranty? For example, if I go do my track day after hitting 1200 miles but don't do the service.