Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › Last oil change was almost 2 years ago › Reply To: Last oil change was almost 2 years ago March 1, 2020 at 5:24 am #941023 JoeParticipant i already know that you said it couple times now, what im asking youre not answering is does think sludge at the bottom of oil catch pan means it already caused engine wear? why does overdue oil change cause oil filter to leak.