Originally Posted by SubieRubyRoo
Why do you think PP 5W30 is not sufficient? Do the other oils you've provided have certifications the PP doesn't? If it's been working well for you, are you just changing because you want to? If that's the case, just use any that meets Nissan's requirements. Oils that meet d1G2 are so eerily similar you're not going to find any "ringers".
FWIW, I did VOAs on all 3 weights of the RGTs a couple weeks back for the board, and filled my Impreza with 5W30 about 350 miles ago. While completely subjective, the RGT has made significantly more valvetrain clatter even when warm (not really loud, but I can hear it even with the windows up) at idle, which is something the prior PPHM did not do. As soon as it's above idle (~1200 rpm), it is as quiet as all the other oils I've tried. I've been tracking with Fuelly, so we'll see where the mileage comes out; but it doesn't seem to be anything magical. I may decide to do a UOA on it, but at this point, I probably won't personally use the oil again. It is, however, available for $13.97/5qts after the MIR, as long as your name isn't JohnnyJohnson. I guess SOPUS doesn't send him rebate checks
I haven't decided if I'm going to follow this up with Amsoil SS 10W30, or with Ravenol DXG d1G1 that came in a d1G2 bottle. I use QSUD in our church vans since it's inexpensive, and they get 6k OCIs with Napa Silver filters for basically 100% city driving with extended idling, and the oil is still slightly amber. Ford 5.4s before the cam phasers were pretty easy on oil!
That is very interesting. The only thing that puts me off of it is how thin it is. I would feel a little better with something thicker in my f150 ecoboost.