I would totally agree and it's the same reply I would type if anyone other than myself typed it. It was the same tank of gas on the s4. We get our fuel from the same station, same pump.What would cause timing variation based on oil used? I'm not seeing how oil would impact that...it's almost always fuel-quality related. Typically oil temps is going to be the same across a grade so all the 40s should show the same, 30s, etc....based on my logging...
I simply don't know how to answer you. Maybe if freed up some rings??? I simply don't have an answer. I logged both cars. Those are the results.
If you follow my post history, you'd know I did nothing but be against boutique oils, especially bitogs favorite and also trolled Amsoil users. I feel like a bit of a "Richard" now, but live and learn, I guess.
I used it, my results are typed above.