Make sure you pair the oil with a high-quality filter. I prefer Wix.
Reviews of Wix parts For Business
USA
I've used Fram, Supertech, Denso, O'Reilly or Autozone store brands, WIX.
Pennzoil Ultra Platinum 0w/20 with Wix/Napa Gold filters. -been relentless about 5k services, @45k now.
-just received my first ever Blackstone Lab analysis, TBN numbers were still extremely good. Blackstone advised me to push my next service to 7500 miles.
-the oil that was sampled, was still a very light Carmel color - I feel guilty throwing away oil that still looks this good
I use OEM filters on both, but I’ll use Wix filters if I’m not around the dealer.
I bought a 10 Wix filters off of Rockauto. Part #: 51394. Each one was $4.80 and shipping was $10. Came out to be roughly the same price as buying OEM ones from a dealership off of eBay and I would rather use Wix ones.
I'm a WIX filter fan myself (though virtually anything that fits properly will be effective). If it were up to me, I'd go with a WIX WP10320. Rock Auto (.com) has them for $15 (+ shipping). They aren't charcoal, but electrostatic which is a bit fancier.
Wix is considered to be good, and it’s not expensive and readily available (can walk into local O’Reilly and buy off the shelf). Subaru OEM works if you’re close to a dealership or think to order it; I never remember to order and my local dealer is terrible, so I avoid them.
Stick with the wix, rebuilders of rotory engine's suggest that brand alone. Given the necessity of the filtration needed for those engines, that's all I use for k20, 404xxxkm and running strong!
Right now I have Red Line 5w30 and a wix filter due to what I’ve read on forums
Wanna see what a Wix filter looks like after less than 10k and 1 year of driving. Notice how the paper media pulled away from the rubber support. Notice that the filter has been sucked in.
Write your review
Help others - share your experience with this part.