Ford's answers to the NHTSA 6.7 Investigation
There was a request for a link to Ford's answer's to the NHTSA investigation posted on a previous thread, since closed. Here is the link: Ford's NHTSA Answers to the 6.7 investigation This PDF i...
Forum Discussion
NewsW wrote:
From the Ford Report:The diesel fuel properties that Ford considers regarding HPFP performance and durability are lubricity, viscosity, water content, total acid number, and oxidation stability.....
Additionally... biodiesel content is another property that Ford considers with regard to HPFP performance and durability. Biodiesel typically provides favorable lubricity properties; however, the fatty-acid methyl esters (FAME) of biodiesel can reduce the stability of the finished blend and oxidize easily, compared with petroleum diesel fuel. If biodiesel is permitted to oxidize, it produces reaction products (acids and peroxides) that can damage or degrade components.
That should be a red flag in front of a bull to never let biodiesel near your 6.7 if at all possible.
That red flag needs to be right next to the lubricity standards for US fuel. I have to laugh when the very documentation provided by Bosch and Ford is summarily dismissed by the fan boys on the Ford sites. On a major Ford site, the virtues of running 2% or higher biodiesel is the preventative measure for providing sufficient lubricity for the HPFP. This theory comes from the previously mentioned Spicer 2008 lubricity test. I guess just because one sample. at that period in time, provided good lubricity, all of today's current biodiesel recipes must also provide the same protection...whistling past the graveyard at it's best
Regards
