|
|
|
06-06-2010, 11:26 PM | #1 |
BOSS
11
Rep 83
Posts |
Break-In period
I have my 135i 6mt on order and should be here in about two weeks or so. I want this car to last me a long time, but i am not sure of the correct way of breaking it in. Is there a certain speed or rpm that I should not reach during break-in, or should I just drive slowly in general during break-in. One of my friends told me that if I break it in by driving aggressively it will reward me by turning out more aggressive, is this true?
__________________
Last edited by MikeNeo; 05-21-2012 at 02:04 PM.. |
06-07-2010, 12:08 AM | #2 |
Major
369
Rep 1,424
Posts |
There are arguments for both styles of break-in. Your car's manual will describe the more conservative style. Use the search function - there are plenty of posts on the topic.
__________________
2017 X5M - Current
2017 F31 Wagon - Current 2014 M5 ZCP - Retired 2011 135i Coupe - Retired 2007 335i Sedan - Retired |
Appreciate
0
|
06-07-2010, 11:34 AM | #3 |
Captain
20
Rep 774
Posts |
How have you broken in your other cars? You can follow the manual which is most likely the best. You can also drive it easy for the forst 300 miles, and then start driving a bit more agressively with some WOTs as long as you are moving. If you don't plan to keep it past 4 years/50K miles, floor it out the foor of the dealership. Either way, you should be fine.
|
Appreciate
0
|
06-07-2010, 12:16 PM | #4 | |
Major General
124
Rep 5,627
Posts |
Quote:
See TrackRat's post for good advice. The only thing I would add is to gradually increase your rev limit from 4,500 to redline over the period from 1,200 to about 1,800 miles. I've done this with 4 new Bimmers - they all ran smoothly, gave excellent gas mileage and none has ever burned any oil between changes. Enjoy your new car! |
|
Appreciate
0
|
06-07-2010, 12:23 PM | #5 | |
I'm just a cook
24
Rep 971
Posts |
Quote:
|
|
Appreciate
0
|
06-07-2010, 02:16 PM | #6 |
BOSS
11
Rep 83
Posts |
thanks to everyone for their input
__________________
Last edited by MikeNeo; 10-12-2011 at 09:24 PM.. |
Appreciate
0
|
06-07-2010, 02:23 PM | #7 |
BOSS
11
Rep 83
Posts |
My only other car was an rx8, but it was rotary so it's a little different. I broke it in by not revving over 5k for the first thousand miles. Now I get like 15mpg at best when I am not driving aggressively. I am not sure if this is my fault or because it is a rotary. Hopefully I don't have that problem with this car.
|
Appreciate
0
|
06-07-2010, 02:26 PM | #8 |
BOSS
11
Rep 83
Posts |
Thanks man, I hope that's the case.
__________________
Last edited by MikeNeo; 10-12-2011 at 09:24 PM.. |
Appreciate
0
|
06-07-2010, 04:38 PM | #9 |
Major
74
Rep 1,001
Posts |
While the aggressive run may be relevant for a fresh-built engine started up the first time (note the genesis of the most common online how-to for that method), it is not right for a built engine.
Even if not dyno tested, the engines are fired up either after building or in the car, and run in a bit to seat the rings. I prefer varied speed, with none higher than 3/4 throttle and 55 MPH and 30-75% of max RPM for the first 1000 or so miles. I also like to do sime initial accelerations and then closed throttle coasting from a decent speed/rpm. This helps put a high level of vacuum in the system and helps seat the rings further. |
Appreciate
0
|
06-07-2010, 07:23 PM | #10 |
Captain
20
Rep 774
Posts |
|
Appreciate
0
|
06-07-2010, 07:59 PM | #11 |
Major
369
Rep 1,424
Posts |
It happens every time with this topic. Let's not beat a dead horse... again, with the arguments of this topic.
__________________
2017 X5M - Current
2017 F31 Wagon - Current 2014 M5 ZCP - Retired 2011 135i Coupe - Retired 2007 335i Sedan - Retired |
Appreciate
0
|
06-07-2010, 11:16 PM | #12 | |
I'm just a cook
24
Rep 971
Posts |
Quote:
|
|
Appreciate
0
|
06-07-2010, 11:41 PM | #13 | |
I'm just a cook
24
Rep 971
Posts |
Quote:
I know quite a few who go by BMW recommended intervals and they have nothing but problems. And those that change there oil sooner than later go hundreds of thousands of miles with not a puff of blue smoke. So please stop misleading the peonage. |
|
Appreciate
0
|
06-07-2010, 11:56 PM | #14 | |||
I'm just a cook
24
Rep 971
Posts |
Quote:
Quote:
Quote:
|
|||
Appreciate
0
|
06-08-2010, 12:37 AM | #15 | |
I'm just a cook
24
Rep 971
Posts |
Agree with most of what you are saying in your previous post, not all.
Quote:
Last edited by JB135MDCT; 06-08-2010 at 12:29 PM.. |
|
Appreciate
0
|
06-08-2010, 10:42 AM | #16 |
Private First Class
13
Rep 157
Posts |
can everyone just point folks at the 1 million threads already discussing this topic?
OP, this topic and how often to change your oil I would say is the MOST FAQ on most car boards.. Please try that next time. I am part of the crowd that respectfully disagrees that you need to baby your car from the beginning. I dont feel the need to retype the same thing over and over.. Again please read the other threads.. http://www.1addicts.com/forums/showthread.php?t=374630 http://www.1addicts.com/forums/showthread.php?t=357588
__________________
(0OO \ (||||)(||||) / OO0)
Alex 2009 135i LMB M package |
Appreciate
0
|
06-08-2010, 02:39 PM | #17 |
I'm just a cook
24
Rep 971
Posts |
^ We need to have a long discussion over many shots of espresso. My fingers are going to fall off.
Grew up poor, have been fixing and working since I was little. Many 100k miles under my belt. Oil/filter change is 45 bucks, filter inspections, monitor mpg, All cheap insurance. Again, Can you explain why BMW delaships sell non-certfied preowned cars with <50k? Never needed UOA! However, I have evolved with the oil. Use to do 3k on Ford Ranger Pickup and up to 8k HWY on e36 328is. With the turbo I say about 5-7k. Being more stringent than manufacturers recommendation is a good thing. Again, when are you going to change your transmission oil? If you have a slush or DCT, your BMW recomended intervals are what? Forever? |
Appreciate
0
|
06-08-2010, 05:02 PM | #18 | |
I'm just a cook
24
Rep 971
Posts |
Quote:
Good luck with your lifetime oil and BMWs recommendation. |
|
Appreciate
0
|
06-08-2010, 07:45 PM | #19 | |
Captain
20
Rep 774
Posts |
Quote:
The key is to cvary your speed. I have broken cars in many different ways over a lot of years, and never had a problem. To me, oil changes are more important over the life of the engine. |
|
Appreciate
0
|
06-09-2010, 09:46 AM | #21 | |
I'm just a cook
24
Rep 971
Posts |
Quote:
|
|
Appreciate
0
|
06-09-2010, 10:02 AM | #22 | |
I'm just a cook
24
Rep 971
Posts |
Quote:
In any cae, excellent technical discussion. My guess is you are from Britain and used to work for Jaguar. Would like talk more about the science of ring break-in, et al. |
|
Appreciate
0
|
Post Reply |
Bookmarks |
Thread Tools | Search this Thread |
|
|