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      11-27-2012, 07:57 AM   #1
mofbb
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Finally the break in period is over

8K RPM !!! Here I come !!!
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      11-27-2012, 08:02 AM   #2
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      11-27-2012, 08:11 AM   #3
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Congrats! Why stop at 8k rpm?
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      11-27-2012, 08:21 AM   #4
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^ Agree. Take it to 150.
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      11-27-2012, 10:59 AM   #5
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      11-27-2012, 02:22 PM   #6
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noob question coming !

i am guessing the break in is 2k miles? is that going by the owners manual ? or is the high RPMs actually locked?
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      11-27-2012, 05:14 PM   #7
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Quote:
Originally Posted by Ezio View Post
noob question coming !

i am guessing the break in is 2k miles? is that going by the owners manual ? or is the high RPMs actually locked?
I believe it is 1200 miles in US or 2000 km in Canada. Yes, the owners manual recommended to do this. It is not locked, some people rev it to 8k at the first day they got their new car.
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      11-27-2012, 05:54 PM   #8
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      11-27-2012, 05:55 PM   #9
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Get off m3post and go drive! Be careful out there, things happen pretty fast at 8k rpm
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      11-27-2012, 06:53 PM   #10
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      11-27-2012, 06:57 PM   #11
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Screw December 25th, today is the real Christmas for you!!!
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      11-27-2012, 07:17 PM   #12
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Enjoy!!!
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      11-27-2012, 07:31 PM   #13
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Honestly, this break in period stuff is a bit of a load of crap and I really don't know the scientific basis of it. How many revolutions do you think it takes for the metal in your engine to get "filed down".

Assume an average rpm of 3000 and an average speed of 50mph. This equates to 180,000 revolutions every 50 miles. 1200 miles would work out to 4, 320,000 revolutions. It does not take this much to break in your motor.

Don't believe me? Take a dremel tool at 6000 rpm to a piece of metal for 1 minute and see what it does.

I have never followed these types of ridiculous break in rules, and I have never had any type of problem. I kept my car under 6000 rpms for like the first 300 miles. Then 7000 rpms for the next 300 miles. Even then, I would deliberately redline it once in awhile. After 600 miles, I drove it however I wanted. I used a lot of engine braking and varied the rpms a lot. Now, I certainly didn't do any sustained high rpm driving like you may do on a track, but for routine spirited street driving, the notion that you have to adhere to these rpm limits has no scientific basis whatsoever. In fact, there are plenty of people who believe a hard break in is actually better for the motor in terms of seating the piston rings and subsequent implications for oil burning.

And BTW, isn't every engine is tested to redline before it even leaves the factory?!?!
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      11-27-2012, 08:20 PM   #14
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Quote:
Originally Posted by LarThaL View Post
Honestly, this break in period stuff is a bit of a load of crap and I really don't know the scientific basis of it. How many revolutions do you think it takes for the metal in your engine to get "filed down".

Assume an average rpm of 3000 and an average speed of 50mph. This equates to 180,000 revolutions every 50 miles. 1200 miles would work out to 4, 320,000 revolutions. It does not take this much to break in your motor.

Don't believe me? Take a dremel tool at 6000 rpm to a piece of metal for 1 minute and see what it does.

I have never followed these types of ridiculous break in rules, and I have never had any type of problem. I kept my car under 6000 rpms for like the first 300 miles. Then 7000 rpms for the next 300 miles. Even then, I would deliberately redline it once in awhile. After 600 miles, I drove it however I wanted. I used a lot of engine braking and varied the rpms a lot. Now, I certainly didn't do any sustained high rpm driving like you may do on a track, but for routine spirited street driving, the notion that you have to adhere to these rpm limits has no scientific basis whatsoever. In fact, there are plenty of people who believe a hard break in is actually better for the motor in terms of seating the piston rings and subsequent implications for oil burning.

And BTW, isn't every engine is tested to redline before it even leaves the factory?!?!
Unless you did some scientific testing, it may be difficult to ever tell the difference. I agree that it is most certainly a waste, logically. Having said that, it was a bit of automotive foreplay for me, so I would do it all over again, for sure. Kind of like modding, it stretches out that new car excitement for a longer period of time. I bought a new car almost every year for several years, and lost a lot of money. Spreading out that new car feeling has helped me slow that down a bit. With my last car, it was mods. For this car it was break in, then first track day in the ///M . Now just need to keep the excitement going for another year, more track time/driving school, perhaps. Then maybe the mods will start in year three
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      11-27-2012, 10:41 PM   #15
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Quote:
Originally Posted by Ezio View Post
noob question coming !

i am guessing the break in is 2k miles? is that going by the owners manual ? or is the high RPMs actually locked?
if you look at the picture again, the speedo is listed in km/h and not mph and the km above the odo as well.
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      11-28-2012, 12:30 AM   #16
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congrats op enjoy!

i on the other hand did not follow the recommended break-in as i drifted out of the dealership with all of 3 miles on the odo and at 50 miles did 150 mph and bounced off the fuel cut-off a couple times
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      11-28-2012, 12:37 AM   #17
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Congrats on reaching the first point, get out there and enjoy (after servicing of course).
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      11-28-2012, 12:43 AM   #18
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Who not to buy a used car from..

The break in is also important for the drivetrain..LSD and trans
Will the car fall apart if you dont do a break in ..probably not..the ugly head of abnormal wear probably wont reveal itself until many miles later..
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      11-28-2012, 12:59 AM   #19
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If the break-in period is BS, then why do many auto manufacturers suggest one? Does it make sense for BMW to fabricate something for no scientific reason?

Quote:
Originally Posted by LarThaL View Post
Honestly, this break in period stuff is a bit of a load of crap and I really don't know the scientific basis of it. How many revolutions do you think it takes for the metal in your engine to get "filed down".

Assume an average rpm of 3000 and an average speed of 50mph. This equates to 180,000 revolutions every 50 miles. 1200 miles would work out to 4, 320,000 revolutions. It does not take this much to break in your motor.

Don't believe me? Take a dremel tool at 6000 rpm to a piece of metal for 1 minute and see what it does.

I have never followed these types of ridiculous break in rules, and I have never had any type of problem. I kept my car under 6000 rpms for like the first 300 miles. Then 7000 rpms for the next 300 miles. Even then, I would deliberately redline it once in awhile. After 600 miles, I drove it however I wanted. I used a lot of engine braking and varied the rpms a lot. Now, I certainly didn't do any sustained high rpm driving like you may do on a track, but for routine spirited street driving, the notion that you have to adhere to these rpm limits has no scientific basis whatsoever. In fact, there are plenty of people who believe a hard break in is actually better for the motor in terms of seating the piston rings and subsequent implications for oil burning.

And BTW, isn't every engine is tested to redline before it even leaves the factory?!?!
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