Maintenance schedule
2021 Ram 1500 maintenance schedule
Key intervals for the 2021 Ram 1500 (3.0L EcoDiesel): Engine Oil & Filter every 10,000 miles or 12 months; Tire Rotation at the first sign of uneven wear; and Engine Coolant every 150,000 miles or 10 years. Every interval runs on miles or time — whichever comes first.
Schedule last updated October 19, 2026.
Ram’s oil change indicator tells you when the oil change is due, from how you drive — towing, short trips and very hot or cold weather bring it on sooner. The oil interval shown is Ram’s upper limit (10,000 miles or 12 months; 6,000 miles or 6 months on the TRX).
2021 Ram 1500 · 3.0L EcoDiesel
12 scheduled services · oil change every 10,000 miles or 12 months
| Service | What to do | When |
|---|---|---|
| Diesel Exhaust Fluid | Replace | Every 10,000 miles or 12 months, whichever comes first |
| Engine Oil & Filter | Replace | Every 10,000 miles or 12 months, whichever comes first |
| Fuel Filter (drain water) | Replace | Every 10,000 miles or 12 months, whichever comes first |
| Brake Linings & Parking Brake | Inspect | Every 20,000 miles or 2 years, whichever comes first |
| Cabin Air Filter | Replace | Every 20,000 miles or 2 years, whichever comes first |
| Front Suspension, Tie Rods, CV/U-Joints & Exhaust | Inspect | Every 20,000 miles or 2 years, whichever comes first |
| Engine Air Filter | Replace | Every 30,000 miles or 3 years, whichever comes first |
| Front & Rear Axle Fluid | Inspect | Every 30,000 miles or 3 years, whichever comes first |
| Accessory Drive Belts | Replace | Every 100,000 miles or 10 years, whichever comes first |
| Engine Coolant | Replace | Every 150,000 miles or 10 years, whichever comes first |
| Transfer Case Fluid | Replace | Every 150,000 miles |
| Tire Rotation | Rotate | At the first sign of uneven wear |
Compiled from the manufacturer’s published maintenance information. Always confirm intervals with your owner’s manual — towing, dusty roads and short trips can mean services are due sooner.
What’s due by mileage
Routine, at every service: Diesel Exhaust Fluid every 10,000 miles or 12 months; Engine Oil & Filter every 10,000 miles or 12 months; and Fuel Filter (drain water) every 10,000 miles or 12 months.
- 30,000 miles: Engine Air Filter and Front & Rear Axle Fluid
- 60,000 miles: Brake Linings & Parking Brake; Cabin Air Filter; Front Suspension, Tie Rods, CV/U-Joints & Exhaust; Engine Air Filter; and Front & Rear Axle Fluid
- 90,000 miles: Engine Air Filter and Front & Rear Axle Fluid
- 120,000 miles: Brake Linings & Parking Brake; Cabin Air Filter; Front Suspension, Tie Rods, CV/U-Joints & Exhaust; Engine Air Filter; and Front & Rear Axle Fluid
2021 Ram 1500 · 5.7L HEMI V8
12 scheduled services · oil change every 10,000 miles or 12 months
| Service | What to do | When |
|---|---|---|
| Engine Oil & Filter | Replace | Every 10,000 miles or 12 months, whichever comes first |
| Brake Pads, Rotors & Linings | Inspect | Every 20,000 miles or 2 years, whichever comes first |
| Cabin Air Filter | Replace | Every 20,000 miles or 2 years, whichever comes first |
| Front Suspension, Tie Rods, CV/U-Joints & Exhaust | Inspect | Every 20,000 miles or 2 years, whichever comes first |
| Engine Air Filter | Replace | Every 30,000 miles or 3 years, whichever comes first |
| Front & Rear Axle Fluid | Inspect | Every 30,000 miles or 3 years, whichever comes first |
| PCV Valve | Inspect | Every 100,000 miles |
| Spark Plugs | Replace | Every 100,000 miles |
| Transfer Case Fluid | Replace | Every 120,000 miles |
| Accessory Drive Belt (Stop/Start) | Replace | Every 150,000 miles |
| Engine Coolant | Replace | Every 150,000 miles or 10 years, whichever comes first |
| Tire Rotation | Rotate | At the first sign of uneven wear |
Compiled from the manufacturer’s published maintenance information. Always confirm intervals with your owner’s manual — towing, dusty roads and short trips can mean services are due sooner.
What’s due by mileage
Routine, at every service: Engine Oil & Filter every 10,000 miles or 12 months.
- 30,000 miles: Engine Air Filter and Front & Rear Axle Fluid
- 60,000 miles: Brake Pads, Rotors & Linings; Cabin Air Filter; Front Suspension, Tie Rods, CV/U-Joints & Exhaust; Engine Air Filter; and Front & Rear Axle Fluid
- 90,000 miles: Engine Air Filter and Front & Rear Axle Fluid
- 120,000 miles: Brake Pads, Rotors & Linings; Cabin Air Filter; Front Suspension, Tie Rods, CV/U-Joints & Exhaust; Engine Air Filter; Front & Rear Axle Fluid; and Transfer Case Fluid
2021 Ram 1500 · 6.2L Supercharged V8 (TRX)
12 scheduled services · oil change every 6,000 miles or 6 months
| Service | What to do | When |
|---|---|---|
| Engine Oil & Filter | Replace | Every 6,000 miles or 6 months, whichever comes first |
| Tire Rotation | Rotate | Every 6,000 miles or 6 months, whichever comes first |
| Brake Linings & Hoses | Inspect | Every 12,000 miles or 12 months, whichever comes first |
| Front Suspension, Tie Rods, Boots & Exhaust | Inspect | Every 12,000 miles or 12 months, whichever comes first |
| Cabin Air Filter | Replace | Every 24,000 miles or 2 years, whichever comes first |
| Front & Rear Axle Fluid | Inspect | Every 24,000 miles or 2 years, whichever comes first |
| Engine Air Filter | Replace | Every 30,000 miles or 30 months, whichever comes first |
| Transfer Case Fluid | Replace | Every 30,000 miles or 30 months, whichever comes first |
| Accessory Drive Belts | Inspect | Every 60,000 miles or 5 years, whichever comes first |
| Spark Plugs | Replace | Every 60,000 miles |
| PCV Valve | Inspect | Every 90,000 miles |
| Engine Coolant | Replace | Every 150,000 miles or 10 years, whichever comes first |
Compiled from the manufacturer’s published maintenance information. Always confirm intervals with your owner’s manual — towing, dusty roads and short trips can mean services are due sooner.
What’s due by mileage
Routine, at every service: Engine Oil & Filter every 6,000 miles or 6 months; Tire Rotation every 6,000 miles or 6 months; Brake Linings & Hoses every 12,000 miles or 12 months; and Front Suspension, Tie Rods, Boots & Exhaust every 12,000 miles or 12 months.
- 30,000 miles: Engine Air Filter and Transfer Case Fluid
- 60,000 miles: Engine Air Filter; Transfer Case Fluid; Accessory Drive Belts; and Spark Plugs
- 90,000 miles: Engine Air Filter; Transfer Case Fluid; and PCV Valve
- 120,000 miles: Cabin Air Filter; Front & Rear Axle Fluid; Engine Air Filter; Transfer Case Fluid; Accessory Drive Belts; and Spark Plugs
Common questions
How often does the 2021 Ram 1500 need an oil change?
3.0L EcoDiesel: Every 10,000 miles or 12 months, whichever comes first. 5.7L HEMI V8: Every 10,000 miles or 12 months, whichever comes first. 6.2L Supercharged V8 (TRX): Every 6,000 miles or 6 months, whichever comes first. That’s the upper limit; the oil change indicator often asks sooner.
How often should the tires on a 2021 Ram 1500 be rotated?
3.0L EcoDiesel: At the first sign of uneven wear. 5.7L HEMI V8: At the first sign of uneven wear. 6.2L Supercharged V8 (TRX): Every 6,000 miles or 6 months, whichever comes first.
When should the coolant be changed on a 2021 Ram 1500?
Every 150,000 miles or 10 years, whichever comes first.
When does the 2021 Ram 1500 need new spark plugs?
5.7L HEMI V8: Every 100,000 miles. 6.2L Supercharged V8 (TRX): Every 60,000 miles.
What maintenance is due at 60,000 miles on a 2021 Ram 1500?
For the 3.0L EcoDiesel: Brake Linings & Parking Brake; Cabin Air Filter; Front Suspension, Tie Rods, CV/U-Joints & Exhaust; Engine Air Filter; and Front & Rear Axle Fluid. Plus the routine services: Diesel Exhaust Fluid; Engine Oil & Filter; and Fuel Filter (drain water). Other engines differ a little — see their lists above. Anything that also goes by time, like brake fluid, may come due sooner.
Miles or time — whichever comes first
An interval like “10,000 miles or 12 months” gives two deadlines, and the service is due at whichever arrives first. Drive a lot and the miles come first; drive little and the calendar does. MaintainAhead learns how fast you put on miles and tells you which date that is for your 1500.
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Know exactly when your 1500’s next service is due.
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