Fluid ยท Engine Oil

Engine Oil

for 2014 Ram 2500 6.7L I6 Cummins Diesel ยท 4WD
Fluid Type
5W-40 full synthetic diesel oil
Spec: API CJ-4
Capacity
12qt
11.35 L
Drain & Refill
12 qt
11.35 L
Change Interval
5,000 mi
8,045 km

Notes

Cummins 6.7L with filter change. Use CJ-4 or newer (CK-4 acceptable). Severe duty: 7500 miles

Buy on Amazon
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases โ€” how we link. This never changes the specs we publish.

Other fluid systems on this vehicle

๐Ÿ”ง Database maintained under the daily editorial review of Chris Hackleman ยท Master Technician ยท 20+ years. Spot an error? Use the Help link above โ€” a human reads every report.
Stuck on this repair? Take it to The Diag Desk โ€” ask a master tech about this exact car โ†’ real human answer within 24h, never AI
๐Ÿ”“ LIBERATED FOREVER
The 2014 Ram 2500 6.7L I6 Cummins Diesel repair data is free for every DIYer and shop on earth, permanently, because Anonymous Sponsor paid $99 to unlock it.
Mitchell1 charges $169/mo for this. ALLDATAdiy charges $30/yr per vehicle. Open Labor Project is free permanently, because of community sponsors like Anonymous.
Free another vehicle โ†’
Building an app?
Free API access to all this data โ€” 10 requests/day, no card required.
Get an API key โ†’
Run a shop?
Manage repairs, estimates, and customers with ShopBase โ€” $249/mo, all features included.
Try ShopBase โ†’