Keep digging but don't let others know. Do it with utmost secrecy, for your eyes only. We shall exchange notes via PM if you discover something. :lol Look, I am a genuine person who tries giving genuine answer, but that would be bragging would'nt it? :lol: Anyways, I would term it as an attempt to be truthful and not unjust towards any oil or brand, especially since I have not heard about it on the forum, especially from my brethren here who's verdict and anaysis on things can be trusted. Further more please understand, that most suggestions here you can follow after making a mental note of things that sound genuine to yourself, after users post their personal experiences for greater benefit of forum users. Should I assume you have gone through most posts here about 720 as I am typing. Please make time as and when possible and do it. Lots of new questions and answers are there, that can make you an expert to not rely ever on hearsay from oil resellers and mechanics, and marketing personnel.