Posted on: - 7/24/2025

2020 Ram 2500 Cummins Diesel Review – Power Meets Precision

Get an in-depth look at the 2020 Ram 2500 with the 6.7L Cummins diesel engine. From a full walkaround to dyno testing and on-road driving impressions, we cover the power, performance, and real-world capability of this heavy-duty truck. Whether you're towing or daily driving, see why this Ram is a top choice for diesel truck fans. Watch the full review now!

🎥 Watch the Full Review

🛠 Walkaround, Performance & Driving Breakdown

1. Exterior Design & Utility

  • Tough Build: High-clearance bumpers, heavy-duty mirrors, and a rugged stance make this truck ready for job sites or weekend adventures.
  • Bed Features: Practical tie-down points and a large cargo area ensure it's as functional as it is bold.

2. Powertrain & Dyno Performance

3. Transmission & Drive Feel

  • The ZF 8-speed transmission offers smooth, precise shifts and keeps the Cummins engine in its optimal power band.
  • On-road manners are refined for a heavy-duty pickup, with minimal turbo lag and confident throttle response.

4. Towing & Work Capabilities

  • Towing Strength: Rated up to 35,100 lbs trailer capacity and 7,680 lbs payload. Towing weight chart (PDF)
  • Hitch & Haul: Backup camera with trailer-assist makes hook-up and maneuvering effortless.

5. Pros & Cons

✅ Pros ⚠️ Cons
Outstanding torque and towing power Slightly louder than gas models
Proven 6.7L Cummins engine Higher diesel maintenance costs
Smooth-shifting ZF 8-speed Added weight reduces fuel economy slightly

🏁 Final Thoughts

The 2020 Ram 2500 Cummins diesel blends legendary diesel performance with modern refinement. Its dyno-proven power, robust towing capability, and practical work features make it an ideal choice for professional haulers and diesel enthusiasts alike.

💡 Helpful Links

ERIC-4
By: Eric Schumann