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Old 06-29-2011, 10:21 AM   #17
jonklein611
Scooby Specialist
 
Member#: 117776
Join Date: Jun 2006
Chapter/Region: MAIC
Location: Moon Twp, PA
Vehicle:
2011 WRX Limited 5dr
WR Blue Pearl

Default

Quote:
Originally Posted by nti_hazard88 View Post
I'm beginning to enjoy this debate. It seems the division is clear enough that nobody will convince the other side otherwise. Most of us are all too arrogant to admit it could go one way or another.

The only way to really prove it is for someone who does the 3k oil changes to man up (just once) and try doing a UoA at 3000, change their oil... get a UoA at 4000, AND, if it's ok... repeat and do 5000... etc until 7500. Then, when the results come back, it'll be either/or.

I would like to believe VERY much that I know better than Subaru engineers, but I don't. But to me it's very common-sense that previously, oil changes were 3750 (with dino oil), and now, synthetics, which last-longer-period-end-of-fricking-story, should be allowed to run at LEAST longer than 3750 (let alone 3000). How far? Who knows, but Subaru says 7500, and unless someone can show me an actual instance of something breaking because of oil being changed at 7500, I'm sticking with it.

ALSO: I HIGHLY... HIGHLY doubt most people fall into the "severe" category. Sure, we might not fall into "optimum" category (so maybe a compromise - oil change at 5000-6000?), but there is no way that we're running the engine beyond standard parameters most of the time. Except for true track-only cars or something, at which point my speculation (yes, we're all just SPECULATING, I just happen to admit it) reaches its end.
Exactly, there is a reason why Subaru removed turbocharged vehicle from the "automatically in severe service" category. Now if you fall under the other cases of severe service, then by all means change it early.

I'll be posting my UOAs from 3,750 and 7,000 soon.
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