Originally Posted By: Wordfreak
I am new to the forum so please excuse my ignorance. It seems several members who I assume are doing their own repairs are taking the time to cut open the oil filter during an oil change. Can you enlighten me (I am being serious and sincere) as to the reason for doing so? Also, are there any techs currently in the trade doing this. Thank you for taking the time to answer my question.
Oil filter changes are maintenance, not repairs. Maintenance can be anticipated and scheduled based on mileage and/or the calender. Repairs are generally not anticipated until actually needed.
The reason I cut open filters is primarily to assess the condition of my engine oil, and by relation, my engine. If there is sludge, debris, water, or metal shavings present, I have learned something. If there is a trend towards more filter loading, I have learned something.
If everything looks OK then I know certain aspects of my engine are still in good shape.
Actual filter failure is relatively rare. While I always look for it in a cut filter, I don't expect to find it. I found my first one just recently.