It should be noted that Chris the area manager from Valvoline spoke to the same people and claims that they never said these things. I spoke with my mechanic after his call with Chris and we compared notes and caught him in a couple of lies. His name is Jack he can be reached at JC Car care I also spoke with a man named Mike at Valvoline who is supposedly a technical guy, who also was very rude and basically told me that none of these people I have spoke with have a lab including the Ford dealer so we don't know what we are talking about. In the face of all the supporting documentation that I supplied Valvoline including a bill for $400.00 from my mechanic for diagnosis and changing out the oil to the correct stuff. Valvoline still denied my claim. Are these the kind of people you want to give your hard earned money to? I will certainly never spend another nickel with these incompetent liars. Do yourself a favor learn from my misfortune and BOYCOTT VALVOLINE!