How many quarts of oil does a 5.9 V8 Magnum take?
Six quarts of oil with the filter installed (about five quarts if you’re not replacing the filter).
The 5.9 L Magnum is Mopar’s 360-cubic-inch V8 used across a range of Dodge, Jeep, and Ram applications from the late 1990s into the early 2000s. When planning maintenance, mechanics typically rely on a standard capacity figure, but the exact amount can vary slightly by model year, oil pan configuration, and whether the filter is replaced during the change.
Engine family and applicability
Knowing which vehicles use the 5.9 Magnum helps confirm the correct oil capacity. The 5.9 Magnum is the widely recognized 360 V8 family and appears in several platforms, including trucks, SUVs, and some early-performance models. In all cases, the service data centers on a six-quart figure when a new filter is installed.
Oil capacity specifics
Typical service data gathered from Mopar and dealership manuals places the standard change-through capacity at six quarts with a filter, with a lower figure if the filter is not replaced during the change.
- 6 quarts with the oil filter installed
- 5 quarts if the filter is not replaced during the oil change
Before you consult the list, note the following capacity figures commonly cited in service literature:
In practice, six quarts with a new filter is a reliable baseline. Always confirm using the vehicle’s owner’s manual, service data sheet, or the dipstick after a change to ensure the oil level is within the correct range.
Why capacity can vary
Variations can arise from differences in oil pan design, the presence of an oil cooler, and the exact filter used. Some model-year updates or regional specifications may adjust the pan volume slightly, but for most 5.9 Magnum installations the six-quart guideline remains accurate when a filter is changed.
Operational tips for an accurate read
To ensure you’re adding the correct amount, follow these best practices during an oil change: drain completely, replace the filter, refill with the recommended oil type, and recheck the level with the dipstick once the engine has run and cooled. If you’re topping up after an oil change, do so gradually and recheck to avoid overfilling.
Summary
For the 5.9 Magnum V8, the typical oil capacity is six quarts with a new filter, with about five quarts if the filter isn’t replaced. Always verify with the vehicle’s manual or service data, and confirm the level on the dipstick after the engine has cycled and cooled.
