The 2009 RAM 1500 generally uses 5W-20 engine oil that meets Chrysler’s MS-6395 specification; 5W-30 can be used in hot climates or under certain conditions as indicated in the owner's manual. Always verify the exact requirement for your engine variant and driving conditions in your manual or with a dealer.
In 2009, the RAM 1500 offered a couple of V8 options (notably the 4.7L and the 5.7L Hemi). While the basic oil standard is consistent, the recommended viscosity can vary based on engine type, climate, and use. This article explains the approved oil grades, the standards they must meet, and practical guidance for maintenance on this model year.
Engine options and oil basics
The 2009 RAM 1500 came with two primary V8 engines. While both generally share the same oil-standard framework, climate and duty cycle can influence the preferred viscosity.
Recommended oil grades
Below is a concise list of the common viscosity options used in the 2009 RAM 1500. The goal is to cover default recommendations and sensible alternatives based on conditions.
- 5W-20: Primary recommendation for most 2009 RAM 1500 engines; use oils that meet Chrysler MS-6395. Synthetic-blend or full synthetic options are preferred for longevity and protection.
- 5W-30: Acceptable in hot climates, under heavy towing, or when the owner’s manual allows an alternative viscosity.
Conclusion: In most cases, 5W-20 is the default, with 5W-30 as a conditional alternative depending on climate and duty.
Oil specification and quality standards
The oil you choose should meet Chrysler’s specification MS-6395, and be API SN or newer with ILSAC GF-5 or newer certification. You may use conventional, synthetic-blend, or full synthetic oils as long as they meet these standards.
- Chrysler MS-6395 specification
- API SN (or newer) and ILSAC GF-5 (or newer)
- Conventional, synthetic-blend, or full synthetic oils that meet the above specs
Conclusion: Always verify that the oil meets MS-6395 and the API/ILSAC certifications listed above to ensure proper protection for the 2009 RAM 1500’s engines.
Oil change intervals and practical tips
Oil-change intervals depend on oil type and driving conditions. For the 2009 RAM 1500, conventional oil is typically associated with shorter intervals, while synthetic or synthetic-blend oils allow longer drains. A practical approach is to follow the owner’s manual and oil-change indicator if equipped, and adjust for severe driving conditions.
- Conventional oil: commonly around 3,000 miles (or the interval specified in your manual) under normal driving conditions.
- Synthetic or synthetic-blend oil: often in the range of about 5,000–7,500 miles, depending on driving habits and climate.
Conclusion: Use the manual as the final authority for drain intervals, and tailor changes to your climate and usage patterns.
Summary
For a 2009 RAM 1500, the default oil is 5W-20 that meets Chrysler MS-6395, with 5W-30 as an acceptable alternative in certain conditions. Oils can be conventional, synthetic-blend, or full synthetic as long as they meet the MS-6395 and API/ILSAC standards (SN/GF-5 or newer). Always check the owner’s manual for your engine variant and driving conditions to confirm the exact viscosity and change intervals, and adjust maintenance based on climate and usage.


