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- RDX Aspec Adv.
I used to be all about using a "bigger filter", and on American cars from the 80's and 90's, which is where my car ownership started, I doubt there were any downsides, really. However, on these newer vehicles, I would rather stay 100% OEM, due to bypass settings, resistance over filter media, etc. and honestly, if you have that much crap in your oil that you need more filter to get it all out...your engine won't last long, anyway. Further, if your oil cooler is so ineffective that you are using the larger filter so you can get a bit more driving in before oil temps crest, 1) You won't get much, and 2) Fix your junk.