Oil filter OEM Honda or Castrol

Might not make a difference, but the Honda oil filters are the best in the business.

I’ve picked up parts for my Acty off the shelf at my local Honda dealer on more than one occasion. They use the same Honda OEM oil filters that can be picked up anywhere. The Actys also share a ton of common parts with US sold Hondas of the same era. I’ve had zero issues finding parts for my Actys and often times the parts are inexpensive

I drive a Honda diesel in the UK. No matter where I look (although I don't look for big drums) oil plus filter is about $100 for me to buy and fit. My village shop would charge less but they wouldn't use the correct grade of oil and probably not a genuine filter.

Just a regular Honda PLM filter. Engine was designed with that filter in mind. Still under warranty as well, rather use oem.

I always use the OEM Honda oil Filter.

Buy Castrol Edge and the long-life filter from Walmart for best engine protection.

I did Castrol Edge Euro Car 5W-40 with a Hengst oil filter, but if you want to spend a little extra most people recommend LiquidMoly

I used the Castrol once, and have been buying the assembled kit from ECS ever since. At 73K miles, now, and change it every 7-8K.

I also do mine at 5k, religiously. I use Honda Ultimate Full Synthetic 10w30 with a Honda brand filter.

Changing the oil filter on 8th gen Si's is a pain in the ass. You need to stick your entire arm around the exhaust header, axle, and steering rack to get to the filter, and then once you barely get a grip and spin it off, it spews oil all over your axle boot and into the subframe.