Welcome to the North American Subaru Impreza Owners Club Tuesday September 23, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Engine Management & Tuning

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 05-21-2014, 03:05 PM   #1
foof247
Scooby Specialist
 
Member#: 290623
Join Date: Aug 2011
Chapter/Region: MWSOC
Location: Detroit Metro, Michigan
Vehicle:
2015 Wrx
Dark grey

Default New 2015 break in question?

My 2015 wrx will be here may 30. I'm hearing a lot of controversy when it comes to break in. I hear people saying that there is no break in point with cars today and it's for only cars from back in the day.

I hear others saying use proper break in by book or you'll break the car.

Then there's this:

http://www.mototuneusa.com/break_in_secrets.htm

CAn Anyone who's knowledgeable on this topic shed some light on this for me?
* Registered users of the site do not see these ads.
foof247 is offline   Reply With Quote
Old 05-21-2014, 03:15 PM   #2
Mattmd
Scooby Newbie
 
Member#: 387610
Join Date: Apr 2014
Location: Howard County, Maryland
Vehicle:
2015 WRX Limited
DGM

Default

You'll probably get people to agree on religion first.

The owner's manual says to break it in over the first 1,000 miles, so that's what I'll do with mine.
Mattmd is offline   Reply With Quote
Old 05-21-2014, 03:31 PM   #3
quazimoto
Scooby Guru
 
Member#: 70395
Join Date: Sep 2004
Chapter/Region: MAIC
Location: Da-boonies,Va
Default

I know....it's confusing..........this has to do with "Engine Management and Tuning" how? You know,tuning the ECU and such........not so much as breaking in a motor........
quazimoto is offline   Reply With Quote
Old 05-21-2014, 03:32 PM   #4
xxst1tch3sxx
Scooby Specialist
 
Member#: 361810
Join Date: Jul 2013
Chapter/Region: NESIC
Location: Worcester, Massachusetts
Vehicle:
2002 SRP
V7 207 RATCHET WAGON

Default

It can't hurt to break it in, but on the other hand it can hurt to NOT break it in. So BREAK IT IN
xxst1tch3sxx is online now   Reply With Quote
Old 05-21-2014, 03:51 PM   #5
foof247
Scooby Specialist
 
Member#: 290623
Join Date: Aug 2011
Chapter/Region: MWSOC
Location: Detroit Metro, Michigan
Vehicle:
2015 Wrx
Dark grey

Default

Engine management. Managing to maintain the motor properly through proper break in procedures
foof247 is offline   Reply With Quote
Old 05-21-2014, 04:23 PM   #6
JimmyBoyWRX
Scooby Newbie
 
Member#: 371081
Join Date: Oct 2013
Chapter/Region: NESIC
Location: CT
Vehicle:
2013 WRX Limited
2006 WRX

Default

Quote:
Originally Posted by foof247 View Post
Engine management. Managing to maintain the motor properly through proper break in procedures
Lol. Nice try.

My opinion...

Break her in hard. Don't abuse however. Boost then engine breaking. Repeat. Use the full rpm range. Don't redline however.
No cruising!!

If you blow her up while doing this you engine was defective in the first place.
Soft break ins are there to keep warranty work down. If it was built right in the first place it will not break.

My father in law is a private pilot and instructor. When they break in rebuilt engines on small planes they are told to warm up and go full power as to seat the Rings. If the engine blows up you know it was never safe in the first place!
JimmyBoyWRX is online now   Reply With Quote
Old 05-21-2014, 04:25 PM   #7
mziol
Scooby Newbie
 
Member#: 254234
Join Date: Aug 2010
Chapter/Region: NESIC
Location: NH/MA
Vehicle:
2015 WRX
DGM

Default

I think you should follow the engine break in procedure listed in the manual. There's no reason for Subaru to suggest an improper break in (that I know of). If it makes you happy to not break anything in then don't. I think that saying rough driving is REQUIRED during break in is ridiculous, especially if you never drove the car hard for the rest of it's life (I doubt it). Run the break in per the manual and you'll be A-OK.
mziol is offline   Reply With Quote
Old 05-21-2014, 04:26 PM   #8
mziol
Scooby Newbie
 
Member#: 254234
Join Date: Aug 2010
Chapter/Region: NESIC
Location: NH/MA
Vehicle:
2015 WRX
DGM

Default

Quote:
Originally Posted by JimmyBoyWRX View Post
Lol. Nice try.

My opinion...

Break her in hard. Don't abuse however. Boost then engine breaking. Repeat. Use the full rpm range. Don't redline however.
No cruising!!

If you blow her up while doing this you engine was defective in the first place.
Soft break ins are there to keep warranty work down. If it was built right in the first place it will not break.

My father in law is a private pilot and instructor. When they break in rebuilt engines on small planes they are told to warm up and go full power as to seat the Rings. If the engine blows up you know it was never safe in the first place!
There's a 1000 mile warranty?
mziol is offline   Reply With Quote
Old 05-21-2014, 04:30 PM   #9
JimmyBoyWRX
Scooby Newbie
 
Member#: 371081
Join Date: Oct 2013
Chapter/Region: NESIC
Location: CT
Vehicle:
2013 WRX Limited
2006 WRX

Default

Quote:
Originally Posted by mziol View Post

There's a 1000 mile warranty?
On what?

Every car I have ever owned from new I have broken in hard. Never had an issue.
Break in by the manual sure you'll be fine however on average you will have higher oil consumption and lower compression.
JimmyBoyWRX is online now   Reply With Quote
Old 05-21-2014, 04:31 PM   #10
RumbleCrew
Scooby Newbie
 
Member#: 390597
Join Date: May 2014
Chapter/Region: MAIC
Location: Fairfax
Vehicle:
2014 STI sedan
ISM

Default

Boost the car (not too excessive) and don't exceed 4,500-5k RPMs until you get over 1,000 miles. If you don't redline the engine you will be fine.

Like stated above and in that manual, cruise in different RPM's and split it evenly between city and highway miles.
RumbleCrew is offline   Reply With Quote
Old 05-21-2014, 04:32 PM   #11
JimmyBoyWRX
Scooby Newbie
 
Member#: 371081
Join Date: Oct 2013
Chapter/Region: NESIC
Location: CT
Vehicle:
2013 WRX Limited
2006 WRX

Default

FYI this is just my opinion as stated earlier this is a harder topic to agree on then religion or politics....
JimmyBoyWRX is online now   Reply With Quote
Old 05-21-2014, 04:35 PM   #12
mziol
Scooby Newbie
 
Member#: 254234
Join Date: Aug 2010
Chapter/Region: NESIC
Location: NH/MA
Vehicle:
2015 WRX
DGM

Default

Quote:
Originally Posted by JimmyBoyWRX View Post
Lol. Nice try.

My opinion...

Break her in hard. Don't abuse however. Boost then engine breaking. Repeat. Use the full rpm range. Don't redline however.
No cruising!!

If you blow her up while doing this you engine was defective in the first place.
Soft break ins are there to keep warranty work down. If it was built right in the first place it will not break.

My father in law is a private pilot and instructor. When they break in rebuilt engines on small planes they are told to warm up and go full power as to seat the Rings. If the engine blows up you know it was never safe in the first place!
Quote:
Originally Posted by JimmyBoyWRX View Post
On what?

Every car I have ever owned from new I have broken in hard. Never had an issue.
Break in by the manual sure you'll be fine however on average you will have higher oil consumption and lower compression.
On the 1000 mile warranty bit - I would think issues would show up regardless later on and require warranty work.

I should add that I'm not advocate of never driving hard. I think that people who don't drive their cars hard from time to time are doing a disservice. I'd be interested to read about this lower compression and higher oil consumption, not because I don't believe it but because I'm genuinely curious. Do you have any sources? I agree with the plane engines though, I'd certainly want to flush out an error before any flight.


foof247 - Don't forget you've got "20 miles" according to the page you linked to to break that bad boy in.
mziol is offline   Reply With Quote
Old 05-21-2014, 04:40 PM   #13
JimmyBoyWRX
Scooby Newbie
 
Member#: 371081
Join Date: Oct 2013
Chapter/Region: NESIC
Location: CT
Vehicle:
2013 WRX Limited
2006 WRX

Default

Quote:
Originally Posted by mziol View Post

On the 1000 mile warranty bit - I would think issues would show up regardless later on and require warranty work.

I should add that I'm not advocate of never driving hard. I think that people who don't drive their cars hard from time to time are doing a disservice. I'd be interested to read about this lower compression and higher oil consumption, not because I don't believe it but because I'm genuinely curious. Do you have any sources? I agree with the plane engines though, I'd certainly want to flush out an error before any flight.

foof247 - Don't forget you've got "20 miles" according to the page you linked to to break that bad boy in.
Did all the research a while back. It's all over the Internet and it's still hotly debated. I just decided on which one made more sense to me.

Main concensus I found was engine break in from Manufacturers haven't changed much in 30 years but the precision of the machine work has. Back in the day you needed to baby the engine to let everything literally grind together to a good fit. This is not the case now.

As you don't have to worry about this you can focus more on seating your piston rings properly to so you get better compression and less oil burn. This means more power and better fuel economy.

Main point is though hard break in doesn't mean abuse the car. It means get some boost in and WOT. But keep revs sensible make sure engine is warmed up fully and then allow lots of engine braking.
JimmyBoyWRX is online now   Reply With Quote
Old 05-21-2014, 04:41 PM   #14
mziol
Scooby Newbie
 
Member#: 254234
Join Date: Aug 2010
Chapter/Region: NESIC
Location: NH/MA
Vehicle:
2015 WRX
DGM

Default

Quote:
Originally Posted by JimmyBoyWRX View Post
FYI this is just my opinion as stated earlier this is a harder topic to agree on then religion or politics....
Yeah, I agree and mine is of my own opinion as well, I design for robotics and not automotive. I'm sure all of these engines go through some initial break in or certification process by the way. Mine however had a few miles from someone else test driving so I'm sure it got hard treatment prior (hopefully nothing too bad i.e. redlining).
mziol is offline   Reply With Quote
Old 05-21-2014, 04:48 PM   #15
mziol
Scooby Newbie
 
Member#: 254234
Join Date: Aug 2010
Chapter/Region: NESIC
Location: NH/MA
Vehicle:
2015 WRX
DGM

Default

Quote:
Originally Posted by JimmyBoyWRX View Post
Did all the research a while back. It's all over the Internet and it's still hotly debated. I just decided on which one made more sense to me.

Main concensus I found was engine break in from Manufacturers haven't changed much in 30 years but the precision of the machine work has. Back in the day you needed to baby the engine to let everything literally grind together to a good fit. This is not the case now.

As you don't have to worry about this you can focus more on seating your piston rings properly to so you get better compression and less oil burn. This means more power and better fuel economy.

Main point is though hard break in doesn't mean abuse the car. It means get some boost in and WOT. But keep revs sensible make sure engine is warmed up fully and then allow lots of engine braking.
Agreed there. If you're going to drive rough - do it smart like Jimmy is saying.
mziol is offline   Reply With Quote
Old 05-21-2014, 04:49 PM   #16
foof247
Scooby Specialist
 
Member#: 290623
Join Date: Aug 2011
Chapter/Region: MWSOC
Location: Detroit Metro, Michigan
Vehicle:
2015 Wrx
Dark grey

Default

Okay so to get this straight, proper break in: for the first 1000 miles don't go crazy on the car, don't cruise at the same rpms all the time, go WOT up to 4 to 5k rpms on occasion getting in boost.
Drive it a little hard but not abusive..
foof247 is offline   Reply With Quote
Old 05-21-2014, 04:51 PM   #17
JimmyBoyWRX
Scooby Newbie
 
Member#: 371081
Join Date: Oct 2013
Chapter/Region: NESIC
Location: CT
Vehicle:
2013 WRX Limited
2006 WRX

Default

Quote:
Originally Posted by foof247 View Post
Okay so to get this straight, proper break in: for the first 1000 miles don't go crazy on the car, don't cruise at the same rpms all the time, go WOT up to 4 to 5k rpms on occasion getting in boost.
Drive it a little hard but not abusive..
That's how about half of us agree on it.

The other half will say baby it

And some will say drive it like you stole it.

Good luck!
JimmyBoyWRX is online now   Reply With Quote
Old 05-21-2014, 04:59 PM   #18
foof247
Scooby Specialist
 
Member#: 290623
Join Date: Aug 2011
Chapter/Region: MWSOC
Location: Detroit Metro, Michigan
Vehicle:
2015 Wrx
Dark grey

Default

Quote:
Originally Posted by JimmyBoyWRX View Post
That's how about half of us agree on it. The other half will say baby it And some will say drive it like you stole it. Good luck!
I guess maybe I'll do a in the middle thing. I mean I'm covered under warranty so I should be fine
foof247 is offline   Reply With Quote
Old 05-21-2014, 05:00 PM   #19
mziol
Scooby Newbie
 
Member#: 254234
Join Date: Aug 2010
Chapter/Region: NESIC
Location: NH/MA
Vehicle:
2015 WRX
DGM

Default

Quote:
Originally Posted by foof247 View Post
Okay so to get this straight, proper break in: for the first 1000 miles don't go crazy on the car, don't cruise at the same rpms all the time, go WOT up to 4 to 5k rpms on occasion getting in boost.
Drive it a little hard but not abusive..
Quote:
Originally Posted by JimmyBoyWRX View Post
That's how about half of us agree on it.

The other half will say baby it

And some will say drive it like you stole it.

Good luck!
I agree with anywhere between this and the standard procedure.
mziol is offline   Reply With Quote
Old 05-21-2014, 05:44 PM   #20
nmlittlebigman
Scooby Specialist
 
Member#: 321409
Join Date: May 2012
Chapter/Region: SWIC
Location: Arrey, NM
Vehicle:
2015 WRX LTD
WRB

Default

Just Drive!
nmlittlebigman is offline   Reply With Quote
Old 05-21-2014, 06:17 PM   #21
bebesito21
Scooby Specialist
 
Member#: 176128
Join Date: Mar 2008
Chapter/Region: South East
Location: I <3 E85
Vehicle:
5862 ...baby boosted

Default

Subaru and every other oem recommend the break in they do due to insurance reasons. So people cant blame subarus break in procedure for the accident they got into. Theyd rather deal with oil consumption than lawsuits.

Do any of you know why you need to break in an engine? Its the rings...and the rings alone. The rings will be mostly seated within the first 20-30 miles. So dont waste time.

Now your car is super new so you have no control over boost except by sticking to a lower gear so rev it up and engine brake down over and over again until you reach 50 miles or so. Make sure to use an oil with a high zinc content and change it frequently during the break in.
bebesito21 is online now   Reply With Quote
Old 05-21-2014, 06:22 PM   #22
foof247
Scooby Specialist
 
Member#: 290623
Join Date: Aug 2011
Chapter/Region: MWSOC
Location: Detroit Metro, Michigan
Vehicle:
2015 Wrx
Dark grey

Default

Quote:
Originally Posted by bebesito21 View Post
Subaru and every other oem recommend the break in they do due to insurance reasons. So people cant blame subarus break in procedure for the accident they got into. Theyd rather deal with oil consumption than lawsuits. Do any of you know why you need to break in an engine? Its the rings...and the rings alone. The rings will be mostly seated within the first 20-30 miles. So dont waste time. Now your car is super new so you have no control over boost except by sticking to a lower gear so rev it up and engine brake down over and over again until you reach 50 miles or so. Make sure to use an oil with a high zinc content and change it frequently during the break in.
High zinc content?
foof247 is offline   Reply With Quote
Old 05-21-2014, 06:32 PM   #23
Concretebone
Scooby Newbie
 
Member#: 367503
Join Date: Sep 2013
Default

Here's something that may throw everyone into shock and maybe scare them... A buddy of mine took me on a tour of the gm assembly line, at the end of the line they start up the cars and hold the throttle at near redline for about a minute,

And another part of the break in period Ian just the motor but remember there's a break in on a new clutch tranny ect.
Concretebone is offline   Reply With Quote
Old 05-22-2014, 10:26 AM   #24
mziol
Scooby Newbie
 
Member#: 254234
Join Date: Aug 2010
Chapter/Region: NESIC
Location: NH/MA
Vehicle:
2015 WRX
DGM

Default

Quote:
Originally Posted by Concretebone View Post
Here's something that may throw everyone into shock and maybe scare them... A buddy of mine took me on a tour of the gm assembly line, at the end of the line they start up the cars and hold the throttle at near redline for about a minute,

And another part of the break in period Ian just the motor but remember there's a break in on a new clutch tranny ect.
It's most likely the same thing that Jimmy and I were talking about - a high stress screening/final check. I don't doubt that it helps to seat things either (dual purpose). You should definitely not be scared but rather grateful that it's done!
mziol is offline   Reply With Quote
Old 05-22-2014, 07:42 PM   #25
bebesito21
Scooby Specialist
 
Member#: 176128
Join Date: Mar 2008
Chapter/Region: South East
Location: I <3 E85
Vehicle:
5862 ...baby boosted

Default

Quote:
Originally Posted by foof247 View Post
High zinc content?
Yes. I use this

http://www.penngrade1.com/products/H...ak-In-Oil.aspx
bebesito21 is online now   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 05:38 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.