The short answer
Dodge's 2026 Durango handbook says to service the oil within 500 miles of the "Oil Change Required" message, and never go past 10,000 miles, 12 months or 350 engine hours on the 3.6L V6 and 5.7L HEMI. On the SRT 6.4L and 6.2L engines, the limit is 6,000 miles or six months, and the oil should be changed at six months even if the message hasn't appeared.
Other items for the V6 and 5.7L: cabin air filter every 12,000 miles; at 30,000 miles, drain and refill the transfer case and replace the engine air filter; spark plugs and PCV valve at 100,000 miles; coolant at 10 years or 150,000 miles. Brake fluid is every 24 months.
The schedule, from the manual
| Item | 3.6L V6 and 5.7L HEMI | SRT 6.4L / 6.2L |
|---|---|---|
| Oil and filter | Indicator; within 500 mi; never over 10,000 mi / 12 months / 350 hours | Indicator; never over 6,000 mi / 6 months |
| Tire rotation | At the first sign of irregular wear | At the first sign of irregular wear |
| Cabin air filter | Every 12,000 mi | Per the SRT plan |
| Engine air filter | Every 30,000 mi | Every 30,000 mi |
| Transfer case fluid | Drain and refill every 30,000 mi | Drain and refill every 30,000 mi |
| Axle fluid | Inspect at 30,000 mi; change for police, taxi, fleet, off-road or frequent towing | Change front and rear axle fluid every 30,000 mi |
| Spark plugs | Every 100,000 mi (with PCV valve) | 6.2L: 60,000 mi; 6.4L: 96,000 mi |
| Engine coolant | 10 years or 150,000 mi | 150,000 mi or 120 months |
| Brake fluid | Every 24 months (time-based) | Every 24 months (time-based) |
Why the SRT limit is shorter
The handbook's SRT section notes that the oil change indicator does not track time, so it sets a six-month change even without the message, and says to change oil more often after extended off-road driving. The V6 and 5.7L plan says trailer towing, short trips, extreme temperatures and E85 use bring the indicator on sooner.
Owner checks once a month
Monthly or before a long trip (handbook)
4 itemsYour ticks are saved only in this browser. Print or screenshot the list to bring it along.
Booking it in Barron
Swant Graber Motors (Chevrolet, Ram, Dodge), 1690 E Division Ave, Barron, 715-537-5657. Service hours: Monday–Friday, 8:00 a.m.–5:00 p.m. (no Saturday service). Service loaners are available; ask the service department when you book. You don't have to use a dealer to keep your warranty; keep receipts wherever the work is done.
Questions
How often should I change the oil in a 2026 Durango?
V6 and 5.7L: when the indicator says, within 500 miles, and never past 10,000 miles, 12 months or 350 hours. SRT 6.4L and 6.2L: never past 6,000 miles or six months.
How often is Durango brake fluid changed?
Every 24 months, per the 2026 handbook; it's time-based only.
Next steps at Swant Graber
Swant Graber Motors (Chevrolet, Ram, Dodge): 1690 E Division Ave, Barron, WI 54812, 715-537-5657. Swant Graber Ford: 1697 E Division Ave, 715-537-9500. Search new or used inventory, or see shop near you for model-by-model answers.
