This is the original owner.
He explained correct maintenance to me...
He removes the filters every two years, and reverse flushes them, with various gases, fluids, then dries and reinstalls (the same filters since factory new).
The fluids are removed and filtered to 0.25 micron when the filters are done, then poured back in..
At this point:
He tops up the differential oil one quart every month = 800 miles.
He tops up the engine oil one quart every 200 miles.
He tops up the transmission oil one quart every 600 miles.
He tops up the power steering fluid daily.
He recharges the A/C weekly through the summer.
All fuel hoses are original and coated with insane layers of various sealers (think quarts).
The steel injector line plastic CLIPS have been replaced by large gobs of JB weld.
The washer bottle leaks, and is refilled weekly with a home mix of 50% ammonia, 25% Isopropyl alcohol, 2% dish soap, 23% water. It stinks.
All gaskets have been re-used (many times) with massive sealer.
No steering/suspension parts have ever been replaced.
He replaces single tires, only after they blow out.
The driver window and seat don't work.
The sunroof does not work.