LOL!
read a very interesting repair mechanic's post about changing oil about 1 particular car: the owner never changed oil once in the greater than 5 years of ownership. Never once!
instead he just changed the filter every 2,000 miles and added oil.
The car was traded into the same dealership, the mechanic went to check inside the engine, and the engine had very little wear.
The most important point is using the best filter you can buy, as that is what keeps the oil clean in the engine and keeps the engine wear to a minimum. For low mileage driving, change the filter every 6 months and add oil.
On the very small coastwise tanker I worked for about 5 years, it had twin GM locomotive 2 stroke diesel engines. The oil was changed every three years in the shipyard. The oil was kept clean with a centrifuge oil cleaner and filters. not sure how often the filters were changed, but we had to be in port for a significant period of time in order to take an engine offline, as ships need to ready to leave the dock at any time. .
So don't go all oil change crazy when regular simple maintenance of the most important part of the lubrication system is required.
YMMV
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