Comprehensive Ram 1500 3.0L EcoDiesel Maintenance Guide
2014+ 3.0L EcoDiesel Maintenance Schedule, Fluid Capacity, & Parts List
The 3.0L EcoDiesel brought a whole new level of versatility and fuel efficiency to the Ram 1500, Jeep Grand Cherokee, and now even the Jeep Wrangler. It offers better fuel efficiency than their gasoline-powered counterparts and more torque to get the job done towing. Not only are the torque numbers higher, but peak torque is reached much quicker, below 2,000 rpms. This makes the EcoDiesel an ideal candidate for towing. While this engine is capable of handling the abuse, maintenance plays a crucial role. When you tow frequently, you need to perform maintenance more often, which can make it very expensive if you rely on the dealership. By performing the 3.0L EcoDiesel Maintenance yourself, you can save yourself money, and make sure your vehicle gets the right fluids, parts, and oil so it stays on the road longer.
To help 3.0L EcoDiesel owners everywhere, we decided to write a comprehensive guide on 3.0L EcoDiesel Maintenance. This guide will give you comprehensive Ram 1500 3.0L EcoDiesel information including the proper maintenance schedule to follow, fluid capacity, and even the parts to perform maintenance properly. Let’s get in to it.

3.0L EcoDiesel Maintenance Schedule
Normal Operating Conditions
Maintenance/Service | Miles | Kilometers | Months |
Change Oil | 10,000 miles* | 16,000 km* | 12 mo. |
Change Oil Filter | 10,000 miles* | 16,000 km* | 12 mo. |
Drain Water from Fuel Filter Assembly | 10,000 miles or every oil change | 16,000 km or every oil change | 12 mo. |
Change Fuel Filter | 20,000 miles | 32,000 km | 12 mo. |
Replace Engine Air Filter | 30,000 miles | 48,000 km | 36 mo. |
Replace Cabin Air Filter | 20,000 miles | 32,000 km | 24 mo. |
Flush Cooling System | 10 years or 150,000 miles | 240,000 km | 120 mo. |
Replace Auto Transmission Fluid & Filter(s) | No OEM maintenance interval given; we recommend 100,000 miles | No OEM maintenance interval given; we recommend 160,000 km | N/A |
Change Drive Belts | 100,000 miles | 160,000 km | 120 mo. |
Flush & Re-fill Transfer Case Fluid ’14-’18 ’20+ | Varies According to model year 120,000 miles 150,000 miles | Varies According to model year 192,000 km 240,000 km | 48 mo. |
Replace Rear Differential Fluid | No OEM maintenance interval given; we recommend 100,000 miles** | No OEM maintenance interval given; we recommend 160,000 km** | N/A |
Replace Front Differential Fluid | No OEM maintenance interval given; we recommend 100,000 miles** | No OEM maintenance interval given; we recommend 160,000 km** | N/A |
Severe Operating Conditions
Maintenance/Service | Miles | Kilometers | Months |
Change Oil | 10,000 miles* | 16,000 km* | 12 mo. |
Change Oil Filter | 10,000 miles* | 16,000 km* | 12 mo. |
Drain Water from Fuel Filter Assembly | 10,000 miles or every oil change | 16,000 km or every oil change | 12 mo. |
Change Fuel Filter | 20,000 miles | 32,000 km | 12 mo. |
Replace Engine Air Filter | 30,000 miles | 48,000 km | 36 mo. |
Replace Cabin Air Filter | 20,000 miles | 32,000 km | 24 mo. |
Flush Cooling System | 10 years or 150,000 miles | 240,000 km | 120 mo. |
Replace Auto Transmission Fluid & Filter(s) | No OEM maintenance interval given; we recommend 100,000 miles | No OEM maintenance interval given; we recommend 160,000 km | N/A |
Change Drive Belts | 100,000 miles | 160,000 km | 120 mo. |
Flush & Re-fill Transfer Case Fluid All Years | 60,000 miles if frequently towing, or used as a commercial vehicle | 96,000 km if frequently towing, or used as a commercial vehicle | 72 mo. |
Replace Rear Differential Fluid | 20,000 miles if frequently towing | 32,000 km if frequently towing | 24 mo. |
Replace Front Differential Fluid | 20,000 miles if frequently towing | 32,000 km if frequently towing | 24 mo. |
3.0L EcoDiesel Fluid Capacity
Now that you know how often you need to service your 3.0L EcoDiesel Ram 1500 or Jeep vehicle, you need to know how much fluid is used for service. Why is this important? Well, you don’t want to start servicing your vehicle and drain oil or any other fluid, just to find out you didn’t purchase enough at the store to fill your vehicle back up properly. The chart below lists most, if not all, of the fluid capacities for your vehicles components. Just remember, sometimes there are slight differences in fluid capacity across model years. Fluid capacities also vary across different model vehicles, so make sure you’re looking at the right part of the chart that applies to your vehicle. Don’t forget to make sure you check the dipstick or any fluid reservoirs to make sure you have the perfect amount of fluid when refilling your vehicle too.
Oil/Fluid | Capacity – Quarts | Capacity – Liters |
Engine Oil ’14-’18 ’20+ | See Below 10.5 Quarts 8.5 Quarts | See Below 10 Liters 8.0 Liters |
Auto Transmission Fluid | 8.8 Quart Refill Capacity | 8.3 Liters Refill Capacity |
Transfer Case | 1.5-2 Quarts | 1.4-1.9 Liters |
Fuel Tank | 26 Gallons | 98.5 Liters |
Coolant ’14-’20 | See Below 11.6 Quarts | See Below 11 Liters |
DEF Fluid ’14-’18 ’20+ | See Below 8 Gallons 5.14-5.74 Gallons | See Below 30.3 Liters 19.5-21.7 Liters |
Front Differential Fluid | 1.1-2.5 Quarts | 1-2.35 Liters |
Rear Differential Fluid | 2.2-2.3 Quarts | 2.1-2.2 Liters |
3.0L EcoDiesel Parts, Filters, and Fluids
So, now that you’re aware of how much fluid or oil you’re going to need, it’s time to take a look at the different parts, filters, fluid, and oil you’re going to need to maintain your 3.0L EcoDiesel. There are a lot of products that may fit, but if you want your EcoDiesel in the best shape, you need to use OEM products. There is some flexibility when it comes to engine oils, but definitely stick with OEM filters and fluids. It’ll save you in the long run.
Ram 1500 EcoDiesel Parts
Part Type | Part # & Link to Buy |
Engine Oil | SAE 5W40 Full Synthetic Mopar 5W40 68001332PC Shell Rotella T6 5W40 |
Engine Oil Filter 2014-2018 2020+ | See Below: Mopar LF68229402AA Mopar LF68507598AA |
Oil Pan Drain Plug | Mopar 68211183AA |
Fuel Filter ’14-’18 ’20+ | See Below Mopar 68235275AA Chassis-Mounted Mopar 68436631AA |
Glow Plugs ’14-’18 | Bosch 0250603008 |
EGR Valve ’14-’18 ’20+ | See Below Mopar 68211310AA Mopar 68490212AA |
Engine Air Filter ’14-’18 ’20+ | See Below Mopar AF-68190705 Mopar AF-68441763AA |
Coolant | Mopar 10 Year/150K Mile OAT Coolant Pre-Mixed: Mopar 68163849AB Concentrate: Mopar 68163848AB |
Thermostat ’14-’18 | Mopar 68253514AA |
Automatic Transmission Fluid | Mopar ZF8 or 9-Speed Auto Transmission Fluid Mopar 68218925AA |
Belt Tensioner | Mopar 68325057AA |
Serpentine Belts ’14-’20 | Mopar 4627897AB Gates K060812HD (Heavy Duty) |
Upper Radiator Hose ’14-’18 ’20+ | See Below Mopar 52014952AD or Gates 24275 Mopar 68268588AC |
Lower Radiator Hose ’14-’18 ’20+ | See Below Mopar 5214953AG Mopar 68268589AC |
Transfer Case Fluid | Mopar BW44–44 Transfer Case Fluid Mopar 68089195AA |
Front Differential Fluid All Years | SAE 75W-85 Full Synthetic Gear Oil Mopar GL-5 Synthetic Axle Fluid |
Rear Differential Fluid ’14-’18 | Mopar SAE 75W-140 Full Synthetic Gear Oil *** Limited-Slip Rear Axles require the addition of 5 oz. (148 ml) of Mopar Limited Slip Additive 4318060AC |
Rear Differential Fluid 2020+ 3.21 Axle Ratio 3.92 Axle Ratio | Varies by Axle Ratio See Below Mopar Synthetic Gear Lubricant SAE 75W-90* Mopar Synthetic Gear Lubricant SAE 75W-140* |
Looking for More EcoDiesel Information?
Check out our other EcoDiesel Resources by clicking on one of the bulleted links below.