Recommended service and maintenance schedule for RAM 3500

Posted at Thu, Jan 29, 2026 4:10 PM

Perkins Motors - Recommended service and maintenance schedule for RAM 3500

Rugged capability is why you chose a Ram 3500, and a clear, consistent maintenance plan keeps that strength working for you mile after mile. At Perkins Motors in Colorado Springs, CO, we turn factory guidance into a simple, real?world plan that fits how you use your truck—daily towing, commercial fleets, or weekend adventures. Intervals vary by model year, engine (6.4L HEMI V8 or 6.7L Cummins Turbo Diesel), transmission, and duty cycle, so always follow your Owner’s Manual and manufacturer updates. Use the general schedule below as a reference, and our advisors will tailor it to your VIN, terrain, loads, and climate. We prioritize safety?critical checks first, use Mopar Genuine Parts for proper fit and performance, and document every visit to protect resale value and help with warranty compliance. Pro tip—driving in mountains, dust, extreme heat or cold, frequent idling, or heavy payloads counts as severe duty, which shortens some intervals. If you are unsure whether your driving is severe duty, we will review your usage and build a plan that prevents downtime and protects your investment. For complete details, consult your Owner’s Manual or contact the manufacturer, and feel free to ask our team for model?year specifics and current service bulletins.

Oil and filter changes: Every 5,000-7,500 miles or 6 months; follow oil-life monitor and use the specified viscosity and certification.
Fuel filters (diesel): Replace about every 15,000-20,000 miles or annually; drain the water separator at service visits or when prompted.
Engine air filter: Inspect every 10,000 miles; replace around 20,000-30,000 miles—earlier in dusty conditions.
Cabin air filter: Replace every 15,000-20,000 miles or yearly to maintain HVAC performance.
Tire rotation and balance: Rotate every 5,000-7,500 miles; set PSI to the door?jamb label and torque lug nuts to spec.
Brake system: Inspect pads, rotors, hoses every 10,000 miles; flush brake fluid about every 2-3 years.
Coolant/antifreeze: Test annually; replace roughly every 5 years/100,000 miles or as your model year specifies.
Transmission service: Inspect at 30,000 miles; service about 60,000-100,000 miles depending on automatic/manual and duty cycle.
Axle/differential fluid: Inspect at 30,000 miles; service around 60,000 miles—earlier with frequent towing or off?road use.
Transfer case (4x4): Service near 60,000 miles under normal use; sooner for severe duty.
Spark plugs (gas 6.4L HEMI): Replace about 60,000-100,000 miles per plug type; check coils and boots together.
Battery and charging system: Test every 6 months; replace as needed, often 3-5 years in extreme climates.
Belts and hoses: Inspect every 15,000 miles; replace serpentine belt 60,000-100,000 miles or if cracking/noise appears.
DEF and emissions (diesel): Top off Diesel Exhaust Fluid as needed; avoid running dry and allow proper regeneration.

Our Ram?certified technicians adjust intervals to your real?world use—mountain grades, trailer weights, plowing, idling, and dusty job sites all influence what your 3500 needs and when. At every visit, we complete a multi?point inspection, verify fluid specs, reset indicators correctly, and road?test for drivability. For diesel owners, we monitor DEF quality, fuel?filter restriction, and regeneration history; for gas trucks, we watch plug wear and ignition performance. We use Mopar Genuine Parts and OEM?approved fluids to help preserve factory performance, and we log services to support warranty coverage and future resale. If you manage multiple trucks, ask us to coordinate staggered appointments—our goal is to minimize downtime and keep you earning. For exact requirements, always consult your Owner’s Manual or contact the manufacturer; our advisors are happy to translate any technical bulletin into plain language for you. Ready to keep your Ram 3500 performing at its peak with a plan that fits your schedule and budget—without surprises? Request more information and our team will build your personalized maintenance roadmap and book your next visit.