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Old 12-03-2012, 08:13 PM   #58
ogboot
Scooby Specialist
 
Member#: 170906
Join Date: Feb 2008
Chapter/Region: RMIC
Vehicle:
2002 WRX
psm

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Quote:
Originally Posted by CalvinT
I think anyone who changes every 3K without having their oil analyzed is wasting money. Blackstone charges $30 to do an analysis. Just pull a sample every 3K and have it analyzed. I think most will find they can go up to a year between changes if they're using a good synthetic.
For $30 you can almost, if not actually change the oil. Subaru updated the recommended interval for the older chassis' to 3750 miles for turbocharged engines. I can't speak for 08+, tho. It used to be 7k but they cut it in half
At 3k I start thinking about it, and it's done somewhere between there and 4k every time. Sure the oil likely has some more life, but they recycle it nowadays at least and that's not a whole lot of miles from what's recommended by the MFG.
Having said that I will also occasionally get a UOA from Blackstone, but it's a health check.
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