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Owning a Ram HD diesel truck is a commitment to power, performance, and reliability—but to keep your investment running at its best, a well-planned maintenance schedule is crucial. Proper upkeep not only ensures the truck’s durability but also optimizes fuel efficiency and towing capabilities, making it a dependable partner for heavy-duty tasks. This guide outlines the key maintenance milestones based on the official 2024 Ram HD diesel manual, helping you stay ahead of wear and tear while maximizing your truck's lifespan.

Every 6,000 Miles or 6 Months

  • Oil and Filter Change: Use approved diesel engine oil.
  • Tire Rotation: Check tire pressure and wear patterns.
  • Inspect Fluid Levels: Coolant, brake, power steering, and windshield washer fluids.
  • Inspect Air Filter: Replace if necessary.

Every 12,000 Miles or 12 Months

  • Inspect Brake System: Pads, rotors, and brake lines.
  • Cabin Air Filter: Replace to maintain HVAC efficiency.
  • Battery Terminals: Clean and inspect for corrosion.

Every 24,000 Miles or 24 Months

  • Fuel Filter Replacement: Essential for diesel engine performance.
  • Inspect Exhaust System: For damage or leaks.
  • Suspension Components: Check bushings and connections.

Every 30,000 Miles

  • Transmission Service: Replace fluid and inspect for wear (frequency depends on usage).

Every 36,000 Miles or 3 Years

  • Cooling System Flush: Replace coolant as per specifications.

Every 60,000 Miles or 5 Years

  • Transfer Case and Differential Fluid Change: For 4WD models.
  • Drive Belt Inspection: Replace if showing signs of wear.

Additional Considerations:

  • Diesel Exhaust Fluid (DEF): Monitor and refill as needed.
  • Heavy Usage: If towing, off-roading, or operating in severe conditions, follow the "severe duty" intervals in the manual.
  • Emissions System: Inspect and service the diesel particulate filter (DPF) as required.

For specific details tailored to your exact trim and driving conditions, consult the owner’s manual or speak with a Ram-certified technician.