....I cant even bring up this name around people in public who are NOT members of this website...I hear the old classic "it will form wax in your engine"....guys..I am 27 years old.....and I do not EVER remember this oil causing a problem in any of my vehicles..I have only been driving since 1997,...when was this supposed era of pennzoil "waxing" taking place? 60's 70's 80's? My friend had a 1993 chevy he had for sale a while ago that ran GREAT with NOTHING but pennzoil since new and had 140,000 miles...a gentleman drove from out of state with his wife to look/drive at this fine truck with CASH in HAND, only to back out of the deal when he asked my buddy what kind of oil he ran in it. He told him the truth and said pennzoil. The fellow almost left black tire marks when he left!! WHAT GIVES!! Has anyone ever had bad luck with it? I hear that SHELL owns it now? Is this true? I happen to proudly admit that I run Pennzoil Platinum, which I buy at wally world for a good price.