I have ran Amsoil Series 3000 5W-30 in my truck since 5,000 miles. I also have ran the Remote Bypass with it since then.
My truck has 170,000 miles on it, and becaue I am a chicken shit, I have changed the oil 3 times, and I should have only changed it once. Every oil sample I have sent in, has came back better than normal and I have changed the filters on the Bypass as recomended, every 25,000 to 30,000 miles.
Just last week, I upgraded my old BMK-17 and put the new BMK-27 on it just because I liked the way the new adapter looked as compared to the old one. I put new oil in it at that time just in case I got some stuff in the Oil lines when I assembled the fittings, but the oil sample came back normal for the oil I threw away.
People have all kinds of opinions on Amsoil, and I too, dont like pushy sales people or whatever, I believe their claims, only because I gave it a try, liked what I saw with the oil samples, and decided I am tired of changing the oil and making other people money, so I haved saved probably $2,000 in oil changes, and I have a very clean, 170,000 mile engine, so someone please tell me, why would anyone not give it a try just for sh!its and giglles and see for yourself?
I am sure that their are lots of you, that love to get under the truck and change the oil every month or so and at about 5,000 miles, but I will tell you this, the money I have saved on oil alone, not to mention filters, I have purchased many add ons to help protect the rest of my truck.
As always, my final opinion is this, USE whatever you want, it is YOUR truck, but dont bash on people that use something else to save money and protect a $50,000 investment to the best of their abilities.