I've been reading a while about auto-rx on bob is the oil guy for a while. I am ready to use it but have a couple of questions. Most of my stuff is new or fairly new and I have a couple applications (older) where I know it would work great. I have read the website numerous times as well. Since everything I own isn't a sludge motor, I will be running maintenance doses in almost everything. Do I need to use a group III oil or dino even for maintenance doses? I am guessing yes, but just checking. I run amsoil in everything. Thanks.