ServlogUpdated 2026-07-02
Dodge Durango Transmission Fluid: Change Interval
Compiled & reviewed by Nikolai Tsyrenov · Updated 2026-07-02
When to change the transmission fluid on a 2021-2025 (3rd gen, WD facelift) Dodge Durango.
In short: Dodge Durango transmission fluid: 8-speed auto: severe/towing fluid + filter ~64,000 mi; normal ~100,000+ mi.
| Transmission Fluid interval | 8-speed auto: severe/towing fluid + filter ~64,000 mi; normal ~100,000+ mi |
|---|---|
| Engine / drivetrain | 3.6L Pentastar V6 (0W-20) or 5.7L HEMI V8 (5W-20, 16 spark plugs); 8-speed auto |
| Model years | 2021-2025 (3rd gen, WD facelift) |
Why it matters: Transmission fluid lubricates and cools the gearbox. "Lifetime fill" really means "lifetime of the warranty" — heat from towing, hills and stop-and-go traffic ages it much faster.
A drain-and-fill (not a flush) is the safe approach, especially on higher-mileage cars. Use ONLY the exact fluid spec for your transmission — the wrong fluid can ruin a CVT or automatic.
Dodge Durango note: The 5.7L HEMI uses 16 spark plugs (two per cylinder); on modern Durangos these are iridium on a ~100,000-mi interval (the old ~30,000-mi figure was for earlier copper-plug HEMIs). Towing pushes you to the severe schedule, especially trans fluid.
FAQ
How often should you change the transmission fluid in a Dodge Durango?
8-speed auto: severe/towing fluid + filter ~64,000 mi; normal ~100,000+ mi.
Should I flush or drain-and-fill the transmission on a Dodge Durango?
Prefer a drain-and-fill. A pressure flush on an old, never-serviced transmission can dislodge debris; a simple drain-and-fill (repeated if needed) is the gentler, widely recommended option.
Where can I check all Dodge Durango service intervals?
The full Dodge Durango maintenance schedule covers oil, tires, fluids, filters and major milestones for the 2021-2025 (3rd gen, WD facelift) model years.
← Full Dodge Durango maintenance schedule · Transmission Fluid intervals for all cars
General guidance — confirm against your Dodge Durango owner's manual.
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