Hyundai coupe 2.0 2006.
I am about to do an oil change and am planning on using an aftermarket filter as I can’t be asked to travel to the dealer.
I have found that ’some’ aftermarket filters cause an engine knocking sound as you can see in attached pic.
Is the letter saying it can engine/performance be affected by such filters besides just there being a knocking sound?
If I do my oil change now with an aftermarket filter and a knocking sound appears later, do I have to change both oil and filter again as the letter suggests, why can’t I just change the filter since an oil change wouldn’t be due until later?