@donaldfoss You need to take a beer break, step back and start over with your trouble shooting. Make sure when you do fuel pressure test that you purge the gauge and rail. Make sure you have GOOD spark, check the voltage with a gap tester if you have one. re-check the compression without adding any more oil. Ignore Andrewwynn's fuel pressure regulator crap.

From listening to the video I would say your valve timing is way off.

Compression test should be 4 strokes and the first 2 really tell the story.

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1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)