2008 Ford F450 Diesel Supplement 4th Printing - Page 46

2008 Ford F450 Manual

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Maintenance and Specifications F-Super Duty vehicles (6.4L engine): • An engine block heater must be used at temperatures below -10°F (-23°C). • Use the same engine oil and filter change intervals when using synthetic engine oil. • Heavier SAE 15W-40 and SAE 5W-40 engine oils are recommended for temperature over 50°F (10°C) and must be used for heavy duty driving and trailer towing. A symbol has been developed by the American Petroleum Institute (API) to help you select the proper engine oil. It will be included on the oil container you purchase. The top section of the symbol shows the oil performance by the API designation. This should match the owner guide recommendation. The center section will show the SAE viscosity grade Changing engine oil and filter Change your oil and filter according to the scheduled maintenance information in this supplement. Change more frequently if your vehicle 46

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F-Super Duty vehicles (6.4L engine):
•
An engine block heater must be used at temperatures below
–10°F (–23°C).
•
Use the same engine oil and filter change intervals when using
synthetic engine oil.
•
Heavier SAE 15W–40 and SAE 5W–40 engine oils are
recommended for temperature over 50°F (10°C) and must be
used for heavy duty driving and trailer towing.
A symbol has been developed by the
American Petroleum Institute (API)
to help you select the proper engine
oil. It will be included on the oil
container you purchase. The top
section of the symbol shows the oil
performance by the API designation.
This should match the owner guide recommendation. The center section
will show the SAE viscosity grade
Changing engine oil and filter
Change your oil and filter according to the
scheduled maintenance
information
in this supplement. Change more frequently if your vehicle
Maintenance and Specifications
46