Avocet
Well-known member
I normally buy car filters half a dozen at a time. I have never seen a use-by date on one.
Not a "use by" date, but a batch code - for traceability. They'd be able to pinpoint the date of manufacture of a given oil filter to within at least a month, I'm sure. One of the deciders I use when buying "pattern" parts for the car is whether or not they have anything on them that looks like a batch code - in other words, some sort of number that isn't stamped into them with permanent tooling like a part number, but that changes with each filter (or batch). To me, that suggests the presence of at least SOME kind of quality system in operation, so they could trace defective batches. The ones with no such markings, I regard with deep suspicion.