In most cases, about 6 quarts of engine oil (roughly 5.7 liters) are needed for a full oil change with a new filter on the common 4.0-liter Chrysler PowerTech inline-6. Always check the owner's manual or consult a dealer for your exact model and year.
Understanding the 4.0L PowerTech engine
The 4.0L PowerTech inline-6 has been a mainstay in several Chrysler Group vehicles, particularly Jeep models such as the Wrangler and Grand Cherokee. Engine designs and service procedures are stable, but oil capacity can vary slightly by year and configuration (including whether a filter is replaced). The standard viscosity recommendation has historically been 5W-30 for most climates, with 0W-40 or 10W-30 acceptable in specific conditions or climates as outlined in the manual.
Capacity snapshot
Here is a practical guide to the oil capacity you should anticipate when servicing the 4.0L PowerTech engine in typical Chrysler-family vehicles.
- Oil capacity with a new filter: 6 quarts (5.7 liters).
- Oil capacity without replacing the filter (rough estimate during a drain-only service): about 5.5–5.75 quarts (roughly 5.2–5.5 liters).
- Recommended oil grades: 5W-30 under most conditions; 0W-40 or 10W-30 may be used in specific climates or as per the owner's manual.
Note: Some editions of manuals or service notes may list a slightly different value for certain year-model combinations. Always verify with your official manual or dealer for your exact vehicle.
Practical tips for performing an oil change
Before you begin, confirm the correct oil quantity and filter size for your specific year and model. Warm the engine to operating temperature to improve drainage, then place the vehicle on a level surface and use a drain pan for old oil. After draining, replace the filter and refill with 6 quarts, then check the level with the dipstick. Top off in small increments if needed to reach the full mark.
Summary
The 4.0L Chrysler PowerTech inline-6 typically requires about 6 quarts of oil with a new filter for a full oil change, roughly 5.7 liters. Always verify the exact specification in your owner's manual for your year and model, and choose the recommended viscosity based on climate. After filling, run the engine briefly and recheck the dipstick to ensure proper oil level.