Ok guys, in another thread I started (Fess Up, who is using 20wt oil in a 30wt motor) I got some great answers on possibly more wear metals in the form of PPM. I am not at all worried about my motor lasting 250,000 miles vs 205,000 by switching to a lighter weight oil. What I am worried about is a complete and total failure because I went with a 0w-20 vs 10w-30 on a motor that doesn't call for 0w-20. I am not looking for crystal ball fortune telling, just all of your personal opinions and theories on the "Big Bang". Darryl Loose in, tight off? Drive it in deeper.