I know a guy who has a Dakota 4.9 V8 with 14k miles that is about to go back to the dealer as his lease is ending.
He never changed the filter but has changed the oil
and was wondering if the dealer would be able to tell if the original filter is still on? He thinks the factory filter would look just like a dealer filter but I'm not so sure about that. I told him to just put a cheap Fram on anyway but I thought this would be an interesting question to ponder.
So what do you think?
He never changed the filter but has changed the oil

So what do you think?