I would hazard a guess that there are more Subies running aftermarket filters than Subie ones....with no oil filter related problems.
Bill from Utah seems to be the Subie oil and filter expert. Hopefully he will chime in.
My sons '07 2.5i has over 70,000 mile, most with aftermarket oil filters. I have used most name brand synthetics as well as Trop Arctic blend. Dealer uses Quaker State 5W-30 bulk which I have use a few times as well. Dino OCI's 5,000. Synthetic 7,500 give or take a few miles/
BTW the Subie runs and sounds better than new (have Pennzoil Ultra 5W-30 with Purolator PureOne Oil Filter PL14610 in it now)
Bill from Utah seems to be the Subie oil and filter expert. Hopefully he will chime in.
My sons '07 2.5i has over 70,000 mile, most with aftermarket oil filters. I have used most name brand synthetics as well as Trop Arctic blend. Dealer uses Quaker State 5W-30 bulk which I have use a few times as well. Dino OCI's 5,000. Synthetic 7,500 give or take a few miles/
BTW the Subie runs and sounds better than new (have Pennzoil Ultra 5W-30 with Purolator PureOne Oil Filter PL14610 in it now)