Originally Posted By: blupupher
So the only internal support is the wire mesh backing?
The filter slides over a plastic cage built into the oil filter cap. But, this filter is extremely stiff by itself as the steel mesh is potted in the plastic resin.
Originally Posted By: ZeeOSix
Does is wipe off ... could just be engine deposits from running it so long. Don't see how it could rust unless it was rusted when initially installed.
Originally Posted By: oil_film_movies
Yeah, wondering if that is really rust. Maybe just deposits.
It is rust, it does not wipe off. I looked at the second one I have (new in box) and it has a single spot of rust. Untreated steel is just going to form some surface rust over time. It's not a big deal, I just did not notice it when I installed it.
Perhaps moisture in the oil accelerated more rust?