2018 Ram ProMaster Transmission Fluid & Service Guide

Quick Answer

• Transmission Make/Model: Mopar "Torqueflite" 62TE (Chrysler 62TE)
• OEM Fluid Spec: Mopar ATF+4 Automatic Transmission Fluid
• Drain & Fill Capacity: Approximately 5.0 - 5.5 Quarts
• Full Overhaul Capacity: Approximately 9.0 Quarts
• Filter OEM Part Number: Verify with dealer or service manual (typically two filters: spin-on and pan filter)
• Recommended Service Interval: Normal Duty: 60,000 - 100,000 miles; Severe Duty/Towing: 30,000 - 50,000 miles or every 2 years, whichever comes first.

Fluid Type Explained

The 2018 Ram ProMaster, when equipped with the 3.6L Pentastar V6 engine, utilizes the Mopar 62TE automatic transmission. This six-speed automatic transmission requires Mopar ATF+4 Automatic Transmission Fluid. It is crucial to use only ATF+4, as other fluid types can cause shifting problems, premature wear, and even catastrophic transmission failure.

Mopar ATF+4 is a highly engineered, synthetic-based fluid designed specifically for Chrysler, Dodge, Ram, and Jeep vehicles that specify it. Its benefits include:

• Improved Oxidation Resistance: Helps prevent fluid breakdown from high temperatures.
• Consistent Viscosity: Maintains proper fluid thickness across a wide range of operating temperatures for consistent shifting.
• Anti-Wear Properties: Protects internal transmission components from wear.
• Friction Modifiers: Ensures smooth engagement and disengagement of clutches and bands.
• Corrosion Protection: Guards against rust and corrosion within the transmission.

Never substitute ATF+4 with "universal" or multi-vehicle fluids that claim to be compatible. While some aftermarket fluids may claim to meet ATF+4 specifications, always refer to the manufacturer's recommendation to ensure optimal performance and longevity of your transmission. Using an incorrect fluid may void your warranty.

Service Procedure

There are two primary methods for servicing the transmission fluid: a drain and fill, and a full fluid exchange (often called a "flush").

Drain & Fill

A drain and fill involves draining the fluid from the transmission pan, replacing the filter(s), and refilling with new fluid. This method replaces only a portion of the total transmission fluid (typically 50-60%) as a significant amount remains in the torque converter and transmission cooler lines. For the 62TE transmission in your 2018 Ram ProMaster, the drain and fill capacity is approximately 5.0 - 5.5 quarts.

Typical Drain & Fill Process:

1. Warm up the engine and transmission to operating temperature.
2. With the vehicle safely on a lift or jack stands, place a drain pan under the transmission pan.
3. Remove the drain plug (if equipped) or carefully loosen the transmission pan bolts to allow the fluid to drain.
4. Once drained, remove the remaining pan bolts and the transmission pan.
5. Remove the old transmission filter(s). The 62TE typically uses two filters: a main pan filter and a spin-on filter (accessible from outside the case on some applications). Verify the exact location and number of filters with a service manual.
6. Clean the transmission pan and magnet(s) thoroughly. Magnets collect metallic wear particles, and a clean pan helps assess future wear.
7. Install new transmission filter(s) and a new pan gasket.
8. Reinstall the transmission pan and tighten bolts to the manufacturer's specified torque.
9. Lower the vehicle and refill the transmission with approximately 4 quarts of new Mopar ATF+4 through the dipstick tube.
10. Start the engine and cycle the shifter through all gears, pausing in D and R.
11. With the engine running and transmission warm, check the fluid level using the dipstick and add fluid incrementally until the correct "HOT" fill line is reached.

Full Fluid Exchange (Flush)

A full fluid exchange uses specialized equipment to replace nearly 100% of the old transmission fluid with new fluid. This is typically done by connecting a machine to the transmission cooler lines, allowing the new fluid to push the old fluid out. While a full exchange ensures almost all old fluid is removed, it is generally more expensive. It's important that if you choose this method, it is performed by a qualified technician using the correct equipment and fluid, as an improperly performed flush can potentially dislodge debris and cause issues.

Service Interval

Adhering to the recommended service interval is crucial for the longevity of your 62TE transmission.

• Normal Duty: For vehicles operating under typical driving conditions (e.g., light city and highway driving without heavy loads), a service interval of 60,000 to 100,000 miles is generally recommended. Always consult your owner's manual for the precise normal duty interval.

• Severe Duty / Towing: The Ram ProMaster is often used for commercial purposes, involving heavy hauling, frequent stop-and-go driving, or towing. These conditions place significant stress on the transmission, leading to higher operating temperatures and accelerated fluid degradation. For severe duty applications, it is recommended to service the transmission every 30,000 to 50,000 miles or every 2 years, whichever comes first. If your ProMaster is regularly loaded to its Gross Vehicle Weight Rating (GVWR) or used for delivery services, consider the lower end of this severe duty range.

Regularly checking your transmission fluid level and condition (color, smell) between services can also help you identify potential issues early.

Common Transmission Problems (62TE)

The Chrysler 62TE transmission, while generally reliable, can experience certain common issues, especially as it accumulates miles or if maintenance is neglected:

• Shifting Issues (Harsh/Delayed Shifts): This is often the most common complaint. It can be caused by low or degraded fluid, worn solenoids, a problematic valve body, or issues with the Transmission Control Module (TCM). Harsh shifts, especially between 2nd and 3rd gear, or a delayed engagement into drive or reverse, are common indicators.

• Solenoid Pack Failure: The 62TE utilizes a solenoid pack (also referred to as the Solenoid Switch Valve (SSV) assembly) to direct fluid pressure to various clutch packs. These solenoids can wear out or become clogged, leading to erratic shifting, limp mode, or specific diagnostic trouble codes (DTCs) related to solenoid performance.

• Torque Converter Shudder: A feeling of vibration or shudder, particularly during light acceleration or when the torque converter is engaged (lock-up), can indicate a failing torque converter. This often feels like driving over rumble strips and can be exacerbated by old or incorrect fluid.

• Transmission Slipping: If the engine revs up but the vehicle doesn't accelerate proportionally, or if the transmission feels like it's "freewheeling" between gears, it indicates internal clutch pack wear or hydraulic pressure issues. This is a more serious problem typically requiring an overhaul.

• Fluid Leaks: Common leak points can include the pan gasket, output shaft seals, or cooler lines. While not always a sign of internal failure, significant leaks will lead to low fluid levels and eventually cause transmission damage if not addressed.

• Overheating: Prolonged severe duty without adequate cooling or proper fluid maintenance can lead to overheating. This accelerates fluid degradation and can damage internal components. If your ProMaster frequently operates under heavy loads, consider an auxiliary transmission cooler.

Addressing these issues promptly can prevent more extensive and costly repairs down the road. Regular maintenance with the correct fluid and filter is your best defense against premature transmission failure.

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