Also, ever notice all of the million mile cars are serviced by their owners?

Well, it's because at chain stores and lube shops their funnels and handheld oil containers have cruddies floating around.

That dirt will end up in your cylinder walls, bearings and the rest is history. The oil is contaminated.

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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.