05-12-2020, 08:59 AM
I looked at a couple US market oil filters, and that were made/assembled in North America (Mexico), but I've also seen them made in Japan or Thailand. I'm guessing that red stuff may just be a brushed/sprayed on coating for the pressure relief valve for sealing.
I always use OEM oil filters on my bikes. One reason, not related to spin-on filters of course, is that the cartridge filters as found on most Honda singles (CBR250R, CB300F, all their ATVs, and also HFT and DCT filters, can be put in backwards, cutting off oil flow. Honda stamps the filter with outside. Most aftermarket suppliers don't, and it isn't obvious.
I always use OEM oil filters on my bikes. One reason, not related to spin-on filters of course, is that the cartridge filters as found on most Honda singles (CBR250R, CB300F, all their ATVs, and also HFT and DCT filters, can be put in backwards, cutting off oil flow. Honda stamps the filter with outside. Most aftermarket suppliers don't, and it isn't obvious.