I've looked at all the posts here and am amazed that things can get so deep on such a simple question. I truely appreciate all your suggestions and feel that Frank did answer my question. I mentioned earlier that I was gonna run the Redline 10W-30 fist. Well, I changed the oil tonite and went with the Mobil 1 10W-30 and 3oz of ARX. In my case, I did feel the difference when I added my first bottle on initial treatment. The truck seem to have more power and the ticking was gone. And it hasn't returned! When you drive a vehicle 100 miles a day you tend to notice things very easily. I know my truck is running much better since using ARX, and you know what?, thats all that matters. I'm happy and will continue to use it. Now I don't know what the inside of the motor looks like, but I know it feels stronger and runs smoother than before the treatments. I will see what happens as far as consumption is concerned and keep you posted. I'm following Al's suggestion this time running a 25% 15W-50 with the 10W-30. Sump holds 4 1/2 qts. I will run the Redline next and see if there's any difference. If not, then I'll probably go with the ring and valve guide seals change idea. You don't realize how helpful you've all been here. I didn't really what to do till I found this site and tapped into everything you guys offer. And, isn't that the purpose here anyway? Lets keep the info flowing and be careful with our opinions ok? It's like, you can talk about my wife and my dog, but be careful when you talk about my Toyota Truck! Rando