now that i have 2 hyundais i have come to the conclusion i will jsut buy them at the dealer. mine is $8.25 with a reciept. i don't want them to come back and tell me " mr why me we can warranty your engine because you used a counterfeit filter" .and be screwed.
once out of warranty i will just use whatever works
To be fair, I doubt that most dealer mechanics or the OEM itself would care much about the oil filter in an engine warranty claim, as long as it was present at the time of the failure and had decent oil inside it. As long as it looks functional, that's all that would matter IMHO. Mechanics are unlikely to dissect the filter (to the point that I did above) and examine it for authenticity.