My Uncle's Pontiac/Cadillac "Oil Change Guy" put oil in the filter for over 40 years before installing the filter.
My uncle never had a single engine issue with that method for over the 65 years that he owned the business.
So you can do what you want but the many years (probably when you were not even born) data says otherwise.
And these are on top of the line GM vehicles.
You have your opinion and experience. I have my experience as do others that says differently. NBD in my mind.
Tom V.
Where does the dirty oil filter come into the discussion?
We always installed a new GM filter filled with clean oil.
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"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
Last edited by Tom Vaught; 10-10-2022 at 05:13 PM.
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