2026 Dodge Durango R/T 392 Maintenance Schedule for Sale in Lumberton, NJ

The 2026 Dodge Durango R/T 392 needs an oil and filter change by 6,000 miles or six months and its first spark plug change at 60,000 miles. Its 6.4-liter HEMI takes 7 quarts of 0W-40 full synthetic oil that meets Dodge’s MS-12633 standard when the filter is replaced. The 392’s next plug set comes due at 120,000 miles.

By Chris Hurff.

What oil does the 2026 Durango 392 take?

Dodge specifies API-certified 0W-40 full synthetic with its MS-12633 approval. Both markings belong on the oil bottle or product sheet. With a new filter the 392 takes 7 quarts, so a service quote for the 6.4-liter engine needs to cover that fill.

The R/T 392 pairs the 475-horsepower HEMI with a maintenance schedule specific to that engine. The Dodge Durango inventory identifies the engine in each vehicle. The R/T 392’s oil and plug schedule is tied to that engine.

When are Durango 392 spark plugs due?

At 60,000 miles, replace the original plugs in the 6.4-liter HEMI. A 392 at 30,000 miles after six years is still halfway to its first scheduled plug change, even if the oil has been changed every six months.

A shake at idle or a loss of power can come from a misfire, including a worn plug or an ignition or fuel problem. Dodge warns that a flashing check engine light can precede serious catalytic converter damage. Have it addressed promptly even if the Durango is well short of its plug interval.

How often should a Durango R/T 392 get an oil change?

The six-month deadline applies even when the 392 has logged fewer than 6,000 miles. Oil Change Required gives you up to 500 miles to get the oil and filter changed when it comes on early. The date on the service receipt matters because the reminder tracks engine use.

If the Durango goes just 3,000 miles in six months on weekend drives between Lumberton and Cherry Hill, it has already reached the time limit. An owner who hits 6,000 miles in four months on trips down I-295 reaches the mileage limit first. The Mopar service shop can price the 392’s seven-quart oil change with the filter and labor included. Service offers are posted separately.

What gas does a Durango 392 need?

The 6.4-liter engine requires premium unleaded with a pump rating of 91 octane or higher. Dodge allows gasoline with up to 15% ethanol and rules out E85. The octane requirement matters on every fill, even on a weekend Durango that spends most of its time parked.

What should I service besides oil and spark plugs on a Durango 392?

At 30,000 miles, the 392’s schedule includes an engine air filter and fresh transfer case and axle fluid. The oil-service inspection covers brakes, battery terminals, cooling hoses and protection, the exhaust and drive joints. Tire rotation follows the 6,000-mile plan, with earlier attention for uneven wear.

Short trips on Route 38 through Lumberton or repeated stops around Burlington can show up as brake or tire wear. The Lucas service department can look at that wear or diagnose a warning light during the same appointment. Dusty driving can also put the air filter on the work order before 30,000 miles.

Coolant has a 10-year or 150,000-mile interval, whichever comes first. A Durango at the 30,000-mile visit can be due for axle and transfer case fluid with years still left on that coolant schedule. Dodge specifies OAT coolant meeting MS-90032 for the 392. The long change interval assumes the correct coolant, so the same specification matters if the reservoir needs a top-up between scheduled services. A reservoir that drops again after a top-up calls for a cooling-system inspection.

2026 Durango R/T 392 maintenance FAQs

Can I wait a year if my 392 sees little use?

Dodge sets a six-month oil limit for the 6.4-liter engine. That applies even to a weekend Durango that has driven less than 6,000 miles.

How many quarts go in a Durango 392 oil change?

The seven-quart service fill includes the amount that goes into the new filter. For a top-up between services, use the specified synthetic and add only enough to restore the correct level.

Will new plugs fix a rough idle?

They can if the plugs are causing the misfire. A technician can read the fault code and check ignition or fuel trouble before replacing good parts.

Do the plugs need to be changed every six years?

The 392’s plug schedule follows the odometer. Six months is the calendar rule for oil service, so a lightly used Durango can go years before its first scheduled plug change.

What should I book if the oil message is on?

Book an oil and filter change within the next 500 miles. On a 392, that visit is also a chance to inspect the brakes, cooling hoses and battery connections.

Book Dodge service for your Durango R/T 392 at Lucas CDJR. Contact the Lumberton shop before driving in from Burlington or Cherry Hill if the check engine light is flashing.