Originally Posted by gzfocus
Stay away from anything that says Penzoil on the bottle or Fram oil Filters for that matter.
Since you test your oil, I'm curious about any facts you have behind this statement about Pennzoil. I've seen the evidence about Fram, but I've seen nothing but excellent UOAs from Pennzoil Platinum and consistenly get good recommendations about Ultra in regard to D.I. engines. I know that Pennzoil yellow-bottle garnered itself a bad reputation for sludge in the 80s, but I'm pretty sure they (and everyone else) has gone through a complete product overhaul since then.
What do you know that you can share with the board?