I have always done a. As a problem STARTS to occur. Do the inspection. Replace as needed. P M of parts and labor ? Just another way of giving money to a company.
Companies still want oil changes and filter every 3,000 miles. Is modern oil so terrible ? Are the air filters so terrible ?
So glad I got rid of brand new Chevy 1967 Chevy convert. SS 396. It ate hydraulic lifters. Wife drove it mostly.
That is when I bought a first Honda shoebox sedan 1975 ? First year they sold them in USA. BEST CAR ...EVER MADE !!! No PM BS It ran forever. Replaced floor sheet meat 3 times...
Think of a Fibreglass surface. Then put onto it a coating that dries as hard as glass. I pilot the hole to be as wide as the widest part of the screw shank. Maybe .010 " larger. Then only the screw is pulling UP on the unseen inside surface.