2016 Ram 3500 — Factory Maintenance Schedule

Quick reference

Notes on oil changes by engine:

• 6.7L Cummins diesel: up to 15,000 miles/12 months under ideal conditions per OLM, but many owners/shops follow 7,500–10,000 miles if towing, idling, or dusty. Use API CK-4 5W-40 (cold/towing) or 15W-40 as spec’d, and a quality Mopar/Cummins filter.
• 5.7L/6.4L HEMI: follow OLM, typically 8,000–10,000 miles/12 months normal; 5,000–6,000 miles if severe.

Severe-duty schedule

Severe duty includes frequent towing/hauling, commercial use, extended idling, short trips in cold weather, off-road/dusty environments, or mountainous terrain.

• Engine oil & filter: 5,000–7,500 miles (HEMI); 7,500–10,000 miles (Cummins) or as prompted by OLM/oil analysis.
• Tire rotation: every 5,000 miles.
• Engine air filter: inspect every 10–15k; replace as needed.
• Fuel filters (Cummins): still every 15k miles/12 months—do not extend.
• Transmission: 66RFE/68RFE at ~60k; Aisin AS69RC as tight as 30–60k depending on use/temperature—confirm in owner’s manual.
• Transfer case and differentials: 30–60k depending on load, water crossings, and heat. Towing heavy or using limited-slip may justify shorter intervals. Use correct viscosity and friction modifier if equipped.
• Brake fluid: every 2 years.
• Cooling system: inspect annually; pressure test prior to towing seasons.

Known issues by mileage (2013–2018 Ram HD generation)

These are commonly reported patterns; individual results vary. Always diagnose before replacing parts.

• 30k–60k: Front-end wear (ball joints, track bar bushings, tie-rod ends) on trucks with plows or heavy tow duty. Brake pad taper/cupping tied to infrequent rotations.
• 50k–90k: DEF/NOx sensor faults and SCR efficiency codes on Cummins trucks; EGR valve/cooler soot buildup. Turbo actuator failures (HE351VE) may show VGT position errors, reduced power, or surging.
• ~67.5k: Cummins CCV filter restriction—oil seepage or whistling under load.
• 60k–100k: Transmission shudder or harsh shifts (68RFE) under heavy tow; fluid/filter service and valve body updates help. Aisin generally robust but sensitive to fluid condition.
• 80k–120k: Water pump seep (HEMI), accessory belt chirp, or idler/tensioner bearing noise. Exhaust manifold bolt breakage on HEMIs leading to tick. Axle pinion seal weeps; u-joint wear on work trucks.
• Any mileage: Steering shimmy/death wobble after a bump if components and alignment are worn—often resolved with track bar, damper, tire, and alignment corrections.

Estimated cost per service

• Oil & filter: HEMI $75–$150; Cummins $150–$250 (12–13 qts, premium filter).
• Fuel filters (Cummins, both): $200–$350 parts+labor.
• Engine air filter: $30–$70.
• CCV filter (Cummins): $140–$250.
• Transmission service: 66RFE/68RFE $300–$550 (pan gasket, sump+spin-on filters, ATF+4); Aisin AS69RC $450–$800 (special fluid/filters).
• Transfer case: $120–$200; Differentials (each): $140–$260 (more with limited-slip additive).
• Brake fluid flush: $110–$180.
• Coolant flush (OAT): $180–$300 with bleed.
• Spark plugs (HEMI, 16 plugs): $300–$600 depending on plug type and manifold access.
• Accessory belt + tensioner/idlers: $150–$400.

What you can DIY vs shop

DIY-friendly

• Engine oil and filter (gas/diesel) with proper drain pan and torque specs; reset OLM.
• Engine air filter and cabin filter retrofit (if equipped aftermarket).
• Fuel filters on Cummins (frame rail + engine-mounted) with care to prime/bleed and avoid introducing debris.
• CCV filter (Cummins) under the valve cover breather housing.
• Tire rotations, brake inspections, and basic belt replacement if you have serpentine routing and a tensioner tool.

Best left to a shop

• Transmission services (especially Aisin) due to fluid spec, temperature procedures, and filter access.
• Differential and transfer case services if limited-slip modifiers or crush-sleeve torque are unfamiliar.
• Brake fluid flush with ABS bleed cycle; coolant service with vacuum-fill to prevent air pockets.
• Diagnostics for DEF/NOx/EGR/turbo actuator faults; front-end shimmy corrections and alignments.

Additional notes

• Timing belt/chain: No scheduled replacement. 6.7L Cummins uses timing gears; HEMI engines use timing chains—inspect only if noisy or during front-cover work.
• Cabin air filter: 2016 Ram 3500 was not factory-equipped. If a retrofit has been added, service every 15k–30k or annually.
• Always confirm by VIN: FCA service intervals can vary by calibration, axle, and transmission. When uncertain, follow the owner’s manual or the in-dash maintenance minder.

Book service on Repairius.