Exactly. It's your opinion and nothing more. State that when you post things like, "0W-30 is the best oil you can buy". In your world, I'm sure it is. I'll stick with what my owners manual says though. I'm not knocking you for using whatever oil weight you think is best for your truck under your specific driving conditions in your specific geographic location, etc. But try and separate opinion from fact if you can. Lots of people come here looking for answers on things like oil and it's better to tell them that the advice you are dispensing is opinion and not fact. Your statement was 110% opinion.

And I'm sorry, but your explaination about Nissan recommending 5W-30 over 0W-30 becasue they don't want to send owners on a wild goose chase looking for oil proves that you most likely don't have a clue what you are talking about as far as oil goes (IMHO)