These devices drastically reduce start up wear to almost none. When you shut the engine off, it pumps pressurized oil into the engine and maintains the pressure until you start the engine again.

I read here and got interested.
building an aux oil tank to increase oil capacity


This guy explains it better than i do.


https://www.youtube.com/watch?v=vyaGoj60A6s


My question is where to install it?

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1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily

1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair

Don't forget to grease the screw and threads on the spring compressor.