2008 Ford F250 Diesel Supplement 4th Printing - Page 45

2008 Ford F250 Manual

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Maintenance and Specifications Engine oil specifications To help achieve acceptable engine performance and durability, it is important that only engine oils of good quality are used in your diesel engine and it is changed at the recommended interval. For normal or severe service, use Motorcraft oil or an equivalent oil conforming to Ford specification WSS-M2C171-E or API service categories CJ-4 or CJ-4/SM. It is important to use these oils because they are compatible with the emission control equipment of your vehicle to meet the more stringent emission standards. The use of correct oil viscosities for diesel engines is important for satisfactory operation. Determine which oil viscosity best suits the temperature range you expect to encounter for the next service interval from the following SAE viscosity grade charts. The charts are separated by vehicle/engine type due to different engine oil viscosity requirements at different temperatures. E-Series vehicles (6.0L engine): *SAE 15W-40 recommended for trailer towing. 45

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Engine oil specifications
To help achieve acceptable engine performance and durability, it is
important that only engine oils of good quality are used in your diesel
engine and it is changed at the recommended interval. For normal or
severe service, use Motorcraft oil or an equivalent oil conforming to Ford
specification WSS-M2C171–E or API service categories CJ-4 or CJ-4/SM.
It is important to use these oils because they are compatible with the
emission control equipment of your vehicle to meet the more stringent
emission standards.
The use of correct oil viscosities for diesel engines is important for
satisfactory operation. Determine which oil viscosity best suits the
temperature range you expect to encounter for the next service interval
from the following SAE viscosity grade charts. The charts are separated
by vehicle/engine type due to different engine oil viscosity requirements
at different temperatures.
E-Series vehicles (6.0L engine):
*SAE 15W-40 recommended for trailer towing.
Maintenance and Specifications
45