In short, use a full-synthetic motor oil that meets Chrysler MS-6395, typically 0W-20 or 5W-20 depending on the engine and model year; always verify the exact specification in your owner's manual or on the oil cap.
The Chrysler 300 has evolved across its production run, featuring different engines and oil requirements. This guide outlines the standard recommendations and how to confirm the correct viscosity for your specific vehicle.
Understanding the oil specification for your Chrysler 300
Because oil requirements vary by engine and year, the most reliable source is your vehicle’s manual. The key clues are the recommended viscosity (such as 0W-20 or 5W-20) and the Mopar specification MS-6395. The oil fill cap and service labels can also confirm the requirement.
Typical guidance for modern Chrysler 300s is to use a full-synthetic motor oil that meets the MS-6395 specification, with the viscosity usually being 0W-20 or 5W-20. The oil should also meet API SP or SN standards and be GF-6 or GF-5 compliant as appropriate for current oils.
Recommended oil viscosities by engine family (general guidance)
Below is a general guide based on common configurations in recent years. Always check your manual for the exact spec.
- 3.6L Pentastar V6: 0W-20 synthetic is typically recommended; some markets may allow 5W-20.
- 5.7L Hemi V8: 5W-20 synthetic is commonly used; 5W-30 may be permitted in certain climates or service intervals.
The above are general references and may not apply to every market or model year. Use the manual or dealer confirmation for your exact specification.
Steps to confirm the exact oil for your Chrysler 300
To ensure you select the right oil, follow these steps before buying:
- Open the owner's manual and locate the engine oil section for your specific model year and engine.
- Look at the oil fill cap in the engine bay; many caps list the required viscosity (for example, 0W-20 or 5W-20).
- Check the oil specification on the bottle (MS-6395, API SP/SN, GF-6/GF-5 compatibility).
- When in doubt, consult a Chrysler dealer or trusted mechanic with your VIN to confirm the exact specification.
Following these steps helps ensure you use the correct oil for your vehicle's performance, efficiency, and warranty considerations.
Common questions and practical notes
- Is synthetic required? The manufacturer generally recommends synthetic or high-quality synthetic blend for consistent protection and better cold-start performance.
- What about oil changes? Use the recommended interval as per the owner's manual, but many owners follow 7,500–10,000 miles with full synthetic depending on driving conditions.
- Can I switch viscosities? If your manual specifies 0W-20 but you are in an area requiring 5W-20 due to climate, consult the dealer; otherwise stick to the manual spec.
These notes summarize common considerations, but again, the manual is the final authority.
Summary
Most current Chrysler 300 models call for a full-synthetic motor oil that meets Chrysler MS-6395, with common viscosities of 0W-20 or 5W-20 depending on engine and model year. Always verify the exact specification in your owner's manual or on the engine oil cap, and use an oil that meets API SP or SN and is GF-6 compliant where applicable.


