Specifications

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Diesel Particulate Filter (DPF)
Ultra Low Sulfur Diesel (ULSD) Fuel
Diesel Engine Oil Requirement
Exhaust Gas Recirculation (EGR)
PERFORMANCE/HANDLING
This page is about:
2009 F-250/F-350/F-450
Super Duty
®
Pickups
Performance/Handling
August 2008
F-250/F-350/F-450
SD Pickups
The 6.4L Power Stroke
®
V8 turbo diesel incorporates
engine and emissions-control technologies that help
reduce particulate emissions to a level equivalent
with gasoline engines. A combination of elements
work together to allow Super Duty
®
to achieve new
government-mandated diesel engine emissions
requirements.
Diesel Particulate Filter (DPF)
•Locatedintheexhaustsystem,afterthediesel
oxidation catalyst
•“Scrubs”theparticulatesintheexhaustgasesby
trapping them after they have left the combustion
chamber
•Periodicallycleansitselfthroughaprocessknown
as “regeneration” which is similar to a small
incinerator that burns off trapped particulates
– Passive regeneration burns off soot naturally when
exhaust temperatures are high enough
– Active regeneration (forced burn-off) occurs as
needed, depending on operational use
•Formorespecificinformationabouttheregeneration
process, please refer to the Maintenance and
Specifications section of the vehicle Owner’s Guide
Diesel Engine Emissions
Diesel Engine Maintenance
Be sure your customers are aware of the maintenance
requirements and service intervals of the 6.4L Power Stroke
V8 turbo diesel.
Maintenance
•UltraLowSulfurDiesel(ULSD)fuelmustbeusedinthe6.4L
to allow the emissions control system, including the Diesel
Particulate Filter (DPF), to operate properly
•CJ-4servicestandardoilmustbeusedwhentheengineoil
is serviced
•Fuel-waterseparatorshouldbedrainedmonthlytoavoid
possible water in the fuel injectors
•Engineblockheatershouldbeusedattemperaturesbelow
–10 degrees F (–23 degrees C) to ensure proper engine
lubrication on start-up
•Recommendusingbiodieselthatisnohigherthan5percent
(B5) to ensure optimum fuel economy. Follow the special
operating conditions maintenance schedule if using biodiesel
•RefercustomerstotheDieselEngineMaintenanceDVDin
the Owner’s Guide package
Service Intervals
•10,000-milenormaland5000-milespecialoperating
conditions oil-change intervals — new oil specification CJ-4
required for 6.4L to operate properly
•20,000-milenormaland10,000-milespecialoperating
conditions fuel-filter change intervals — both fuel filters must
be replaced according to maintenance intervals
Ultra Low Sulfur Diesel (ULSD) Fuel
•ULSDfuelMUSTbeusedin6.4Ltoallowtheemissionscontrol
system, including the DPF, to operate properly
•ULSDfuelmaybeusedinpre-2007dieselengines
•Sulfurlevelreducedby97percentcomparedtoconventionaldiesel
(from maximum of 500 parts per million [ppm] to 15 ppm)
Diesel Engine Oil Requirement
•OilthatmeetsthenewAmericanPetroleumInstitute(API)
service category CJ-4 is required for the 6.4L diesel engine
to operate properly
•CJ-4servicestandardoilmustbeusedtokeeptheenginewarranty
in effect
•CJ-4oilmaybeusedinpre-2007engines
Exhaust Gas Recirculation (EGR)
•Dual440mmEGRcoolershaveanairoxidationcatalystthat
scrubs exhaust gases from the air
•ThecatalystprotectsthecoolersfromfoulingandtheEGRvalve
from deposits
•EGRvalveisself-cleaning
•EnginecontrolmodulemonitorstheEGRvalve,checkingfor
buildup that can prevent the valve from seating properly
• Ifbuildupisdetected,theECMtakesstepstocleanthevalveseat