The 2015 Chrysler 300 with the 5.7L Hemi uses 5W-20 motor oil, preferably synthetic, and the engine holds about 7 quarts with a filter.
For this engine, the oil should meet Chrysler’s MS-6395 specification and be within the ILSAC GF-5/API SN performance standards. The standard viscosity is 5W-20, with synthetic oils preferred for longer life and better performance. Always verify with the owner’s manual or a trusted dealer to confirm climate-specific guidance and warranty requirements.
Oil viscosity and specification
The following options align with the engine’s specification requirements and are commonly used in the field for the 5.7L Hemi in the 2015 Chrysler 300.
- 5W-20 synthetic motor oil (preferred; meets MS-6395 and ILSAC GF-5/API SN)
- 5W-20 conventional motor oil (acceptable if synthetic is unavailable; must meet MS-6395 and ILSAC GF-5/API SN)
In practice, using a 5W-20 oil that is approved for MS-6395 and ILSAC GF-5/API SN ensures compatibility with the engine’s tolerances, cold-start performance, and long-term durability.
Oil capacity and service notes
Before performing an oil change, it’s helpful to know the typical capacity and service cadence for this vehicle.
- Oil capacity (with filter): about 7 quarts (approximately 6.6 liters)
- Recommended change interval: 5,000–7,500 miles with conventional 5W-20; 7,500–10,000 miles with synthetic 5W-20, depending on driving conditions and oil type
- Filter: use a standard OEM Mopar filter or an equivalent that meets MS-6395 specifications
Always verify oil level with the dipstick after a fill and follow the vehicle’s oil change indicator or the owner’s manual for the exact service interval. Extreme driving conditions may modify the recommended interval, so annual or more frequent checks are prudent in harsh climates or heavy-use scenarios.
Summary
For the 2015 Chrysler 300 5.7L, use 5W-20 motor oil, preferably synthetic, that meets MS-6395 and ILSAC GF-5/API SN standards. Expect a total capacity of about 7 quarts with a filter. When purchasing oil, choose products labeled to satisfy the MS-6395 specification; follow the recommended change intervals—shorter if using conventional oil and longer if using synthetic—and always use an appropriate oil filter. When in doubt, consult the owner’s manual or a Chrysler-certified technician for climate-specific guidance.