2010 WRX Break-in period? - Subaru WRX Forum
 
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#1 Old 01-24-2010, 11:15 PM
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2010 WRX Break-in period?

I haven't been running my car very hard because one of my friends that tuned a 2004 WRX told me that the engine needs to break in.
It seems logical, but I really don't know much about it.
How many miles should I drive my car before it's safe to kick it up a notch?
I currently have 580 miles.

Thanks!

Tom

2010 WRX Wagon (Pearl White)
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#2 Old 01-24-2010, 11:39 PM
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http://www.cars101.com/subaru/subaru_maintenance1.html
2010 Subaru Impreza WRX, Premium, Limited, 2.5GT, and STI

This advise is pretty stardard and its tailored to 2010 wrx/stis on that last link.

"New Car 1000 mile break-in period- keep RPMs under 4000, vary speeds, avoid hard starts/stops, warm up and cool down engine
1st oil change all models recommended at 3 mos or 3750 miles whichever comes first. Required on turbos. 2.5L required at 7,500 miles or 7 mos.
Oil change: every 3,750 miles (because of the turbo)
Tire rotation 7,500 miles
15,000 miles - minor service, inspection, air and other filter changes as necessary.
30,000 mile service with major fluids, spark plugs, (WRX 60,000) and filters change
60,000 miles (WRX spark plugs) - repeat 30,000 service
105,000 miles replace timing belt.
Coolant- Subarus have the Subaru Super Coolant. This coolant is blue. The first replacement is 11 years. "

Kirt
378awhp/373wtq Custom Dom 3 & CBRD tuned 2006 STI.
"When in doubt...flat out" - Colin McRae
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#3 Old 01-25-2010, 12:13 AM
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Nice. Thanks a lot.

Tom

2010 WRX Wagon (Pearl White)
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#4 Old 01-25-2010, 12:04 PM
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I pretty much followed that put still pushed my car hard a handful of times before I hit 1,000 miles. Now I'm not saying go do that but there are so many opinions I don't even think Subaru knows exactly what you can and can't do.

-Chris
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#5 Old 01-25-2010, 04:01 PM
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I toured the Subaru factory a few years back and every car they make is put on the dyno and run up over 100 MPH. It kind of threw everything I thought I knew about a break-in period out the window

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#6 Old 01-25-2010, 06:53 PM
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Quote:
Originally Posted by blk05WRX View Post
I toured the Subaru factory a few years back and every car they make is put on the dyno and run up over 100 MPH. It kind of threw everything I thought I knew about a break-in period out the window
Bitchin. I'm gonna go be Ken Block.


Tom

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#7 Old 01-26-2010, 12:39 AM
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Most real serious engine builder guys I have talked to have given me the same advise: "break it in like you intend to drive it". In other words, they were against babying it. They did however unanimously point out that the engine should be given sufficient time to warm up when it's new.

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#8 Old 01-26-2010, 09:53 PM
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Are there any side-effects to babying it that would affect the performance later on?

Tom

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#9 Old 03-12-2010, 02:42 PM
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Quote:
Originally Posted by pearlwhite10 View Post
Are there any side-effects to babying it that would affect the performance later on?
Yeah, Less power later on.
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#10 Old 05-27-2010, 01:09 PM
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nice.im in the same boat.... time to go womp on it!!!!
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#11 Old 05-29-2010, 08:54 AM
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The most important thing is allowing your engine to warm up before going into boost or pushing it past 3k RPM. This does not mean that the water temp. needs to be at operating temp, it means your oil temp needs to be at operating temperature (~5 mins after water hits operating temperature). Be sure to vary your RPMs and also to introduce it to higher RPMs slowly. Accelerate and then decelerate in gear, it will help the rings seat.
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#12 Old 06-25-2010, 11:59 PM
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FWIW, I use an "old racers" method from when I learned to build engines. First 100 miles are letting things settle in, vary the engine speed and stay below 4000 rpms. After that, no redline till 500 miles and vary the engine speeds. Once I hit 500 miles, I redline it a few times and pretty much drive it the way I will for the rest of it's life. There is wisdom in the break it in the way you will drive it. This has worked for me really well over the past 25 years.

The other thing I like to do is change the oil at 1000 miles to a good performance oil. Non synthetic! If you use a synthetic from the get go, it will almost stop the final break in of the engine. I had this happen on my bombed turbo diesel when I switched at 15k. It took another 15k to get the blow-by gasses to stop. But, I'm at 175k and still well below the national wear numbers for my truck - I have my oil tested by a lab.

This is my opinion, so take it as that and make your own judgment.

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