I do not use your product which does get high marks; When I bought my 6.7, Ford service manager told me the product Ford sells is the same as what I was using from Walmart, which I have been using since 2008. He also stressed the need for the additive, because of potentially low octane levels at the pump and for lubrication. I add faithfully at each fillup. And yes, that 6.7 with the six speed tranny soundly beats my past three Ford Diesels and I thought each of them was great.
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Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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