The largest online repair guide library for every car

About us
Contact support
FAQ
Sign up
Sign in

2020 Durango R/T Transmission Fluid Service - DIY or Dealer?

0

Mark S. · rep 0 · May 22, 5:45 AM · 1 replies · solved · Question

Vehicle: 2020 Dodge Durango R/T

Hey everyone,

I've got a 2020 Dodge Durango R/T with the 5.7L Hemi and the ZF 8-speed transmission. I'm approaching 60,000 miles, and I'm wondering about the transmission fluid service. The owner's manual says 'lifetime fill' under normal conditions, but I do a fair bit of towing and some spirited driving, so I'm thinking it's time.

Has anyone done a transmission fluid and filter change on their 2020 Durango R/T themselves? What specific fluid did you use? I know these ZF transmissions are particular. Is it just a pan drop and refill, or is a full flush recommended? I'm trying to decide if this is something I can tackle in my garage or if it's better left to the dealership or a specialist shop.

Any advice or step-by-step guides would be greatly appreciated! I want to make sure I do this right to keep my Durango running strong.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 5:45 AM

0

ClearTheCode admin answer:

Servicing the ZF 8HP transmission in your 2020 Dodge Durango R/T is a critical maintenance item, especially given your driving habits. While Dodge often states 'lifetime fill,' for vehicles used for towing, performance driving, or in severe conditions, a fluid and filter change between 60,000 to 80,000 miles is highly recommended to ensure longevity and optimal performance.

Here's what you need to know:

  1. Fluid Type is Crucial: The ZF 8HP transmission requires very specific fluid. You must use a fluid that meets the ZF Lifeguard 8 specification (e.g., Mopar ZF 8&9 Speed ATF, Shell L12108, or equivalent licensed fluids). Using incorrect fluid can lead to premature transmission failure and void your warranty. Do not substitute with generic multi-vehicle ATFs.

  2. Pan Drop and Filter Change: For these transmissions, a pan drop and filter replacement is the standard service procedure. The filter is integrated into the transmission pan itself, so you'll be replacing the entire pan. This ensures you get a fresh filter and remove accumulated metallic particles. A full 'flush' using a machine is generally not recommended by ZF for these transmissions, as it can potentially dislodge debris and cause issues.

  3. DIY Considerations:

    • Tools: You'll need a torque wrench, a fluid pump for refilling (as it's filled from the bottom), and diagnostic equipment to monitor transmission fluid temperature. The fluid level must be set within a specific temperature range (typically 30-50°C or 86-122°F) with the engine running and cycling through gears.
    • Procedure: It involves draining the old fluid, removing and replacing the pan/filter, refilling with new fluid, and then carefully setting the fluid level at the correct temperature. This can be messy and requires precision.

  4. When to See a Shop:

    • If you're not comfortable with the specific temperature-dependent fill procedure or don't have the necessary tools (especially the diagnostic scanner for temperature monitoring).
    • If you notice any existing shifting issues, unusual noises, or leaks, a professional diagnosis is warranted before performing a fluid change.
    • A reputable independent shop specializing in European transmissions or a Dodge dealership will have the correct fluid, tools, and expertise to perform this service correctly, ensuring your transmission's health.

Given the complexity and the specific requirements of the ZF 8HP, many owners opt for professional service to ensure it's done right. It's an investment in your Durango's long-term reliability.

Menu

Help & account