In late 2016, a new specification of diesel motor oil, API CK-4, became available. Following extensive testing, Ford concluded that some CK-4 motor oils could potentially lead to high-mileage engine wear in Ford diesel engines.
In response, Ford developed its own specification of diesel motor oil – WSS-M2C171-F1. This new specification of diesel motor oil has been designed for use in all Ford diesel engines and is available now. Motorcraft offers this new oil in 5W-40, 10W-30 and 15W-40 viscosities.
To help protect your Ford Super Duty diesel engine and your warranty, remember to look for the WSS-M2C171-F1 specification on the bottle.
For other diesel engines, such as the 3.0L diesel in the F-150, refer to our Tech Talk video on Motorcraft FA-4 diesel motor oi. You can view that video, here: [ Ссылка ]
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For parts or parts ordering information consult your local Ford or Lincoln dealership, Motorcraft authorized-distributor, or visit us at [ Ссылка ]
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Ford Super Duty Diesel Motor Oil Update | Ford Tech Talk
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