I am pretty sure that we will soon be seeing some UOA's on Pennzoil Ultra, and many members will be comparing this oil to Pennzoil Platinum. I am sure if the PU UOA's do not come back as being better than PP or if they are the same then some members will be upset.
I really do not think we can compare both PU and PP by looking at UOA's. I just can't see a UOA telling us whether PU is keeping the engine as clean or cleaner than PP.
From my personal experience using PP I have noticed that it did clean up my valvetrain on my El Camino, of course I did have MMO in the oil, but I do have to give credit to PP.
I really do not think we can compare both PU and PP by looking at UOA's. I just can't see a UOA telling us whether PU is keeping the engine as clean or cleaner than PP.
From my personal experience using PP I have noticed that it did clean up my valvetrain on my El Camino, of course I did have MMO in the oil, but I do have to give credit to PP.