There is nothing wrong with Delo the motor oil. It's NOACK numbers don't excite me and it does leave a bit of staining ultra thin varnish, but I don't think this is harmful in any way.
As for DELO the analogy, well let me just say they say "shift the tax burden to the rich" that always seems to mean around $100K. Not RICH, just trying hard to suceed. Redline has been good to me in this department, but I must admit until, cigar boy came along ALL Delo was bad....