AK, I just changed my oil using Redline 5w-30 and and added a filter magnet and magnetic drain plug. Your DYI was so informative and easy. It took me 45 min, and I was taking my time. Everything just flowed together nicely. I haven't however gotten rid of the engine tapping noise with Redline, but at this point, I'm just happy everything went so smoothly. Sending my used Nissan Ester oil to Blackstone for analysis. You're the man, man!