[Valvoline SynPower](http://www.valvoline.com/products/brands/synpower/full-synthetic-motor-oil/5) is what I have run since I purchased my 2012 Subaru Legacy.
Vehicle:
Subaru Legacy
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I use Castrol or Pennzoil most of the time (N/A engine or I'd use Rotella) haven't had any issues with it.
Pros: no issues
Vehicle:
Subaru Legacy
Rotella T6 is very popular for turbo Subarus. It's 5w-40, which has some advantages. It's cheap at $20/gallon.
Pros: cheap, popular
Vehicle:
Subaru Outback
I ran this for 200k and ways very happy with results. Had the oil tested twice in a lab and was happy with the results.
Pros: happy with results
Vehicle:
Subaru
Mileage: 200000 km
The belt I installed by Continental had a warranty and it was fairly easy to install myself.
Pros: easy to install, had warranty
Vehicle:
Subaru
I run Motul in the Subaru with a bunch of track days and it has had no oil related problems and does not burn excessive amounts of oil with almost 75,000 miles.
Pros: no oil related problems
Cons: burns no excessive oil
Vehicle:
Subaru
Mileage: 75000 km
For my WRX, I went with KYB. First, they are cheaper. Second, they are 20% stiffer than OEM. I know you might not want a stiff ride, but the OEM ones are really soft. The 20% stiffer ones pair very nicely with stock springs. Honestly, it will feel and handle much better.
KYB actually makes the OEM ones, so fitment is spot on.
Pros: 20% stiffer, better handling, spot-on fitment
Vehicle:
Subaru
The DWS are great tires. I honestly had no problems in my girlfriend's Subaru with the stock bridgestone "no-seasons" until I bogged it in about 10" of fresh snow in the middle of the night (up to the doors), with the tires at the wear bars. I was impressed. The DWS are even better.
Pros: great tires, even better
Cons: none
Vehicle:
Subaru Impreza
Now that I've done the job, I can't tell if it's just in my head but the car seems to have less power now. It was already a sluggish engine to begin with it but it feels like I need to floor it even more. Also, the gas mileage has dropped from 25 MPG to 22.5 MPG.
Pros: idles completely smooth
Cons: less power, mileage dropped
Vehicle:
Subaru
Mileage: 60000 km
I had a set of Firestone Winterforce 2's on the WRX, and they were downright dangerous if they were on anything other than snow.
Cons: downright dangerous on non-snow
Vehicle:
Subaru
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