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Part record

6.4L Power Stroke Engine Oil, CK-4 15W-40 (6.4L Power Stroke spec)

verified Aftermarket MPNMotorcraft Super Duty / equivalent CK-4 15W-40

Regeneration fuel-wash thins the oil - hold the CK-4 15W-40 spec (or the 5W-40 synthetic for cold climates) and short intervals on tuned trucks.

Where to buy

Not listed online at Dave's Auto Center yet. Ask Dave's Auto Center about this part, quoting part number CK-4 15W-40.