I started using M1 in 1978 and have never had a car increase in oil consumption from the time I bought it till sold. If I do get engine leaks I either repair them myself or have it done. I learned how to care for vehicles while In the Navy. I was a jet engine mechanic and saw how aircraft were maintained, and I followed that experience the rest of my life.
Which jet engines did you work on ?
I’ve seen the Mobil 1 engine photos you posted over the years and your engines were spotless.