M My442 Joined Aug 22, 2005 Messages 250 Location Boston Aug 14, 2007 #1 I tried a bottle of Torco MPZ in my Olds 442. The "butt dyno" felt some improvement. The engine sounds a bit quieter as well. Just an FYI
I tried a bottle of Torco MPZ in my Olds 442. The "butt dyno" felt some improvement. The engine sounds a bit quieter as well. Just an FYI
