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      02-13-2008, 04:33 PM   #1
curtdragon
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Engine Break in

There are a few methods of breaking in motors.
One is to beat on it as it is supposed to help seal the rings better, the other is to not drive about 4-5k rpm for about 1-2000 miles. using dino oil for 500 then switching to synthetic.

Any thoughts on breaking in a new 135?
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      02-13-2008, 04:34 PM   #2
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And the 'religious' wars begin in . . . 3 . . . 2 . . . 1 ; -)
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      02-13-2008, 04:37 PM   #3
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heh, i guess i am opening up a can of worms
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      02-13-2008, 04:40 PM   #4
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A gallon sized, industrial strength, can o' worms. Sit back and watch the fur fly before long . . . make sure you have some popcorn handy. ; -)
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      02-13-2008, 04:51 PM   #5
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Since no one has given an opinion yet, i'll start:biggrin:

MY engineering backround tells me that everything should be worked in gradually, and that's everything. Put the motor into all rpms and all gears at all speeds. Don't floor it right out of the showroom, let things loosen up a bit then push it a bit farther.
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      02-13-2008, 04:53 PM   #6
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I have done the 'beat on it from the start' break-in on one new BMW and burned a quart of oil between 4000mile oil changes. I tried following the recommended procedure and had no oil problems on 4 new BMWs.

I'll be following the 1200 mile <5000rpm varied speeds break in procedure.
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      02-13-2008, 06:21 PM   #7
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I'll bite......um na maybe next time
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      02-13-2008, 06:25 PM   #8
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This isn't a very good war...no action and excitement and flaming. I'm disappointed
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      02-13-2008, 06:29 PM   #9
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Quote:
Originally Posted by AwesomeBMW View Post
This isn't a very good war...no action and excitement and flaming. I'm disappointed
Could be because it was beaten to death in this thread, this thread, and this thread???
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      02-13-2008, 06:29 PM   #10
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actually i must apologize for not searching well enough... I'm a noob here but not a noob to car forums and i should know better. i searched and found the information i was looking at in several threads :

lol

Anyway I personally will do as some people recommend and that is to use what is listed in the owners manual this qoute is a very good one:
Quote:
Originally Posted by AJ~ View Post
BMW is well qualified to recommend the proper break-in procedure for the engine they designed and manufacture.

Those wear surfaces that need to mate together? BMW designed them. How many tens of thousands of test hours went into the develpment of the N54? Listen to the folks that brought this engine into existence.

They have spent more time with the N54 than any of us ever will.
Sorry Mods please lock this up
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      02-13-2008, 06:31 PM   #11
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Nah - let's see if we can get combustion, we've got fuel, oxygen and now are waiting ignition. . . someone'll bite soon.
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      02-13-2008, 06:41 PM   #12
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Quote:
Originally Posted by atr_hugo View Post
Nah - let's see if we can get combustion, we've got fuel, oxygen and now are waiting ignition. . . someone'll bite soon.

nice metaphor. That reminds me, i should probably start that english paper for tomorrow. Yay procrastination
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      02-13-2008, 06:53 PM   #13
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When I received my 135i I didn't revved it past 3,500 rpms during the first 1,000 km (621.37 miles), 4,000 rpms during km 1,000-1,500 (621.37-932.06 miles) and 4,500 rpms during km 1,500-2,000 (932.06-1,242.74 miles).

It was the greatest exercise of self-discipline I made in my entire life.

Apart from that, I never rev the engine it too high when it is still cold and I never stop it just after "pushing" it.
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      02-13-2008, 07:14 PM   #14
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Dr. No made a very important point - never, ever, ever, 'rev' a cold engine.
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      02-13-2008, 07:17 PM   #15
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Quote:
Originally Posted by atr_hugo View Post
Dr. No made a very important point - never, ever, ever, 'rev' a cold engine.
not even to warm it up:biggrin:
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      02-13-2008, 07:45 PM   #16
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i don't have a strong opinion either way but when bmw drafts its recommended break-in procedure they aren't interested in getting the last drops of HP from your engine ... they are interested in minimizing their warranty claims. the two don't necessarily go hand-in-hand...but maybe they do in this instance.

another example would be the extended oil change recommendation

it all comes down to how they are affected monetarily.
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      02-13-2008, 07:53 PM   #17
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I've never heard "beating" on a new engine recommeded by anyone, but many suggest steady state rpms arent ideal either (like on the freeway). I read putting the engine under 2-3 second short bursts of heavy throttle every few minutes or so during the first 500-600 miles helps seat the piston rings. (After its up to temp of course.) I did ths on my 06 TSX and it was very stingy on oil after the first few hundred break-in miles. (some oil cosumption is normal when a motor is brand new.)
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      02-13-2008, 08:02 PM   #18
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Well it shoulndn't take too long to warm this engine up, considering its history of overheating. Not sure what I will be doing, might depend on if I lease or buy.
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      02-13-2008, 11:51 PM   #19
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Seems everyone I know who went the more aggressive break in has a car that dynos stronger than the average. I have no idea what their oil consumption is like.
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      02-14-2008, 07:21 AM   #20
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Quote:
Originally Posted by Papethova View Post
Seems everyone I know who went the more aggressive break in has a car that dynos stronger than the average. I have no idea what their oil consumption is like.
+1 i have broken in many of my cars by beating the snot out of them from day 1 and they have ultimately performed better on dynos and on the street than their babied counterparts. Thats just me.
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      02-14-2008, 07:41 AM   #21
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I just wanted an excuse to roll out the smilies. :biggrin:
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      02-14-2008, 08:51 AM   #22
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I don't nessesarely beat on the car but i do a systematic series of % rpm and throttle pulls in the first 100 miles to seat the rings always had very good dyno results.
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