This was the first UOA I did, which was on my second oil change. I swapped out the Castrol Edge 5w30 synth for AMSOIL's 5w30 Euro blend:
http://www.amsoil.com/shop/by-produc...tic-motor-oil/
Here's the first UOA:
When I did my next oil change I grabbed another UOA. However, it completely slipped my mind that I needed to have the little white vial right next to me when I started to drain, so I ended up getting my sample from pouring oil into the vial from my oil collection pan. Ultimately, I believe this affected the results of the sample. I refilled this with another 5L of AMSOIL 5w30 Euro:
I recently did another oil change, but haven't had the chance to send in my sample. I replaced the 5w30 with AMSOIL's 5w40 FULL SAPS Euro, which is currently in my car now:
http://www.amsoil.com/shop/by-produc...motor-oil-efm/
I should also mention that I use the OEM blue Subaru filters. I change them and the crush washer each oil change.