I have been searching for days and days and hours upon hours just to find what would be a good oil filter and what oil is good to use.
This has been ridiculously difficult and every place says something different and there's nothing for sure.
Subaru says use Castrol Syntec and NOT mobil1.
Nasioc says Castrol syntec is crap, not even real synthetic.
everyone says they use mobil1 but subaru said that it voids the warranty on the 07's.
no for oil filters.
Everyone says use OEM.
I can understand that, but Purolater is just a basic filter.
What other filters are good?
Everyone says Fram sucks? why?
can't be any worse than Purolater.
So I just want a final answer, i'm sick of searching and reading.
I have a 2007 Stage1 WRX.
WHAT OIL SHOULD I USE (5w-30 or 20?) I live in the mountains so 5w-20 or 30?
WHAT OIL FILTER SHOULD I USE?