T trajanMember These guys expect a greater demand for 0w-20. http://www.gf-5.com/the_story/ingredients/Formulating 0W-20 oils requires the use of Group III Base Oils.For Kirk, ILSAC also set GF-3/4. So much for the big oil chip on the shoulder.... 5/9/105:29 PM Last edited by trajan 5/9/105:38 PM