Summary: The 3.0 liter V6 EcoDiesel is capable of outstanding fuel economy and stump-pulling torque. Availability has expanded into additional Jeep and Ram products.  This state-of-the art power plant is clean, smooth, and whisper quiet.

Model Availability:

2021 Ram 1500, Jeep Wrangler and Gladiator

When will they be available? They are available now!

What's so great about this engine?The 3.0 Eco-Diesel is a remarkable engine.  It has lots of torque which provides power to tow, it provides excellent acceleration, it's fun to drive, and it gets 30% better fuel economy than a Hemi V8, with comparable performance.


  • +6-10 MPG improvement in Ram over Hemi V8.  You can drive a pickup or Jeep with fuel economy rivaling much smaller vehicles.  This is based on EPA ratings and our experience.
  • up to 900 Miles of Range! At 29 MPG highway (Ram 1500 rating) and with the optional 32 gallon tank, you can drive 900 highway miles with a 1 gallon reserve. That's at the EPA rating, but many people can beat that. There's even a challenge for truck owners who try to go 1000 miles on a tank!  Even in other models with smaller tanks, the EcoDiesel will go much farther on a tank of fuel, so you can spend more time having fun, and less time filling up
  • Significantly reduces CO2 emissions versus gas engines
  • Smooth, powerful towing performance. This engine reaches its; maximum torque at only 2000 RPM's, so there's plenty of low-end power to get heavy loads moving smoothly

Specs on outgoing engine (2014 through 2018 model years):

  • 240 Horsepower
  • 420 lb-ft of torque
  • Oil change interval - 10,000 miles
  • Excellent noise, vibration and harshness (known in the industry as "NVH") so you know you're driving a luxury vehicle and not a dump truck!

Specs on new 3rd Generation engine (2020 Model Year and beyond):

  • 260 Horsepower (+20)
  • 480 lb-ft of torque (+60) for Ram 1500  442 lb-ft in Wrangler and Gladiator
EPA Ratings:

Ram 1500 EcoDiesel:
  • 4X2 32 Highway, 22 City, 26 Combined MPG
  • 4x4 29 Highway, 21 City, 24 Combined MPG
Wrangler Unlimited:
  • Rubicon: 26 Highway, 21 City, 23 Combined MPG
  • Other models: 29 Highway, 22 City, 25 Combined MPG
  • Rubicon: 27 Highway, 21 City, 24 Combined MPG
  • Other models: Highway 28, City 22, Combined 24 MPG


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How much does the EcoDiesel cost?

Ram EcoDiesel Pricing for 2021:  The EcoDiesel is priced at $4,995 in the Ram.  The 3.6L V6 is standard, and the eTorqe Hemi is $1,995.   So, it's a $3000 premium over the eTorque Hemi.

For Wrangler, the Ecodiesel with automatic is $6000.  The V6 gas engine with automatic is $2,750, and the 2.0L Turbo with automatic costs $1,500.  So the EcoDiesel cost is a $4,500 upcharge from the 4 cyl. turbo, and a $3,250 upcharge from the V6 gas motor.  EcoDiesel is only available with automatic transmission.

What should I know about EcoDiesel Reliability?

Our experience selling and servicing many EcoDiesels over the years (since 2014) has been good.  Some of the early-generation engines were subject to an emissions recall that required reprogramming of the engine computer. After that update, some customers complained of loss of power.  FCA engineered a fix for this symptom and it seems to work.  The third generation engine that is out now, has many upgrades, but it is also very new, just arriving in 2020 model year.  We love the engine, in fact our service manager and Dealer Principal both own EcoDiesels. If reliability is your primary concern, you may want to choose the 5.7L Hemi engine, which is pretty much bullet-proof.  Ram and Jeep stand behind the EcoDiesel engines with a 5-year/100,000 warranty

What is the factory warranty on the 3.0L EcoDiesel?

5 Years/100,000 miles

How do maintenance costs of the 3.0L EcoDiesel compare to gas engines? Bottom line: They are substantially higher

  • Oil Changes may cost a bit more, but you will likely do them less often. An oil change costs about $200. The 3.0L Eco-diesel requires synthetic oil and quite a bit of it. In Ram applications, it takes 10.5 quarts. In Jeep applications, it takes 8 quarts. So, oil changes will cost a bit more than on conventional engines. It's important to note, that many conventional engines now require synthetic oil, so an Eco-diesel oil change may cost significantly more than an oil change on a vehicle you are replacing, but only a bit more than a new gas engine. Also, you may change your oil less frequently than a gas engine, because the recommended oil change interval in most circumstances is 10,000 miles.
  • DEF (Diesel Exhaust Fluid) Tank needs to be filled every oil change. Depending on the amount you need, this can cost between $50 and $100
  • Fuel Filters need to be replaced every other oil change. This will cost between $200 and $270, depending on application
  • Versus a Hemi engine: A Hemi engine does not yet require synthetic oil, but it has a large oil capacity, so expect to pay $50 for an oil change, and we recommend a 5,000 mile interval, but this can be adjusted based on your requirements. So, in 20,000 miles, the Hemi would cost about $200 in scheduled maintenance (4 oil changes X $50), or 1 cent per mile, versus about $800, or 4 cents per mile.

Will an EcoDiesel Save Me Money?

For Ram 1500, the math works like this:                 

With gas at or below $3.00 per gallon, and diesel at or below $3.30 per gallon, you likely won't save money buying an EcoDiesel versus a gas engine. We estimate scheduled maintenance costs at 1 cent per mile for a Hemi engine, versus 4 cents per mile for the EcoDiesel. For more details on maintenance, see above.

So, considering maintenance costs, we begin with a 3 cents per mile deficit for the EcoDiesel. If gas is at $3.00 per gallon, and diesel at $3.30, the cost per mile of fuel is 16.67 cents and 13.75 cents respectively. This assumes 18 MPG gas and 24 MPG diesel. Some people may object to these estimates, and they only reflect my driving, but I've logged tens of thousands of miles on both the EcoDiesel and the Hemi in Ram 1500's, and this is my real-world experience. In any event, the cost of fuel, per mile, is 2.92 cents lower with the diesel using these assumptions, so it's about break-even once you consider the maintenance cost difference. Once you add in the upfront cost of the engine, it's unlikely you will save money overall at current fuel prices, however, if fuel prices increase substantially, your savings could be large. For example, if regular unleaded cost $5.00 per gallon and diesel was $5.30, then the cost per mile for gas would be 28 cents and for diesel only 22 cents.

What if I tow a lot?

When I tow my boat, which I estimate weighs about 4,800 lbs with a full tank of fuel and gear, I get about 17 MPG with the EcoDiesel, and about 11 MPG with the Hemi. Now, things start to get interesting. With the Hemi, cost per mile of gas is 27.3 cents, and with the diesel, it's 19.4 cents. So, while towing, there is a significant fuel and cost savings with the EcoDiesel.

For Jeep Grand Cherokee, Jeep Wrangler, and Jeep Gladiator, we don't have official EPA ratings yet, but the cost-per-mile fuel savings will likely be less than in the Ram 1500. The reason to buy the EcoDiesel in these vehicles likely won't be for cost savings, but for the performance differences.

Which Transmission comes with the 3.0 EcoDiesel?

The EcoDiesel has been equipped with a German-made ZF 8-Speed automatic, a different transmission than is available on gas models.

Will there be a manual option for the new Jeep Diesels?

Sadly, no.

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