I have read a good many of the posts hereon pertaining to opinions and facts concerning synthetic oil, and as a result, have a question:
Having found that AMSOIL has been thoroughly discredited for lack of certain industry standard certifications, I am wondering about Schaeffer full synthetic. I have not been able to determine as yet whether or not Schaeffer has obtained the certifications that AMSOIL has not. However, I am looking for a full synthetic for my Wagoneer, and found their data impressive.
All facts and opinions will be appreciated.