After reading about Schaeffers 5W30 im thinking on giving this stuff a try. With amsoil series 3K costing almost $10 a qrt according to their site there is no way im going to keep use it. Great oil but way over priced. How many of you use this stuff in their toyotas? Ive got a 3.4L 2002 Tacoma. Six month oil changes with stock filters is my plan. Stop and go driving with some constant speed freeway driving as well. Thanks.