2018 Ram 2500 Pre-Purchase Inspection Checklist
Known Issues — 2018 Ram 2500
CRITICAL
6.7L Cummins fuel injector failure
CRITICAL
6.7L Cummins DEF system sensor failures
MODERATE
6.4L HEMI oil consumption
MODERATE
Front axle U-joint wear
MODERATE
Uconnect infotainment freezing
MINOR
Tailgate step optional accessory failure
What to Inspect
- On Cummins — check for injector knock and scan fault codes
- On Cummins — verify DEF system
- On 6.4L HEMI — check oil level
- Inspect front axle U-joints
- Test Uconnect infotainment
- Test tailgate step if equipped
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Oil change (diesel synthetic) | every 15,000 miles | $150-$220 |
| Oil change (HEMI gasoline) | every 8,000 miles | $80-$120 |
| Fuel filter (Cummins) | every 15,000 miles | $80-$150 |
| DEF fluid refill | every 10,000 miles | $30-$60 |
| Rear differential fluid | every 45,000 miles | $120-$180 |
| Transfer case fluid | every 60,000 miles | $100-$160 |
| Brake service | every 40,000 miles | $500-$800 |
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