Many years ago Mr Extreme Tightwad brought his buick v8 car to the shop, lifters were noisy, oil smoke etc. We determined the cause was lack of oil changes, as it was massively sludged up. We pulled the engine and did a re-ring and valve job to clean it out.
When he came in to get it back, he was kind of pissed because we used new antifreeze, and wanted to know if we had saved the
old oil and filter to put back in !!!
The guy had NO clue his tight ass ways ruined he engine, even though we explained it many times, he wanted us to put the old sludge oil back in the rebuilt engine ???