newbury
Super Star Member
- Joined
- Jan 8, 2009
- Messages
- 14,155
- Location
- From Vt, in Va, retiring to MS
- Tractor
- Kubota's - B7610, M4700
One of the main problems is the lack of lubricity for the HPFP made by Bosch.
and another link
Ford 6.7L HPFP failures w/o warranty - Page 2
Due to my paranoia of putting LSD in my '09 TDI I inspect every pump I fill up at for the ULSD sticker (even if I'm running my F350). On my trips from Mississippi to Virginia and back I've yet to see a 5% Bio sticker.
But please take the picture so I can easily recognize it.
Lubricity of US spec ULSD (Diesel) causing HPFP failuresWhy ULSD is a problem
Diesel fuel sold in the United States should have a maximum wear scar of 520 microns on the HFRR test. In 2009, Bosch issued a joint manufacturers statement that stated:
"It is essential that the lubricity of the fuel as measured by the HFRR test specified in ISO 12156-1 meets the requirement of a wear scar diameter not greater than 460 microns. In addition, it is recommended by the Diesel FIE manufacturers, that 吐irst fill of the fuel tank should be with fuel with good lubricity characteristics (HFRR < 400 μm) in order to guarantee good 途un-in of the injection system components. The US diesel specification (ASTM D 975-09) includes a lubricity value of 520 μm maximum (according to ASTM D 6079). It is expected that the useful operating lifetime of any mechanical component will be adversely affected by fuel with a lubricity exceeding 460 microns."
What does this mean to you? Your fuel system was designed to operate with fuel that has a HFRR scar rating of less than 400, while the fuel available to you has up to 520. The result can be premature failure of the fuel system, including the fuel pump - which commonly operates over 25,000 psi.
and another link
Ford 6.7L HPFP failures w/o warranty - Page 2
There are other parts of the world.Maybe its a regional thing, but every diesel pump in North Texas has a 5% bio blend sticker right on the pump, I can take a picture if you would like one.
Due to my paranoia of putting LSD in my '09 TDI I inspect every pump I fill up at for the ULSD sticker (even if I'm running my F350). On my trips from Mississippi to Virginia and back I've yet to see a 5% Bio sticker.
But please take the picture so I can easily recognize it.