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What type of oil does a 2005 Dodge Magnum use?

The oil specification for a 2005 Dodge Magnum depends on its engine: the 3.5L V6 typically calls for 5W-30, while the 5.7L Hemi generally uses 5W-20 as the primary viscosity (with 5W-30 acceptable in warmer climates or per the owner's manual). Always verify the exact spec on the under-hood oil label or in your vehicle’s manual.


Engine options and oil specifications


The 2005 Magnum was offered with two powertrains, and each has its own recommended oil grade and viscosity. Below are the typical guidelines for each engine. Always follow the documentation that came with your specific vehicle.


3.5L PowerTech V6


What to know about oil for the 3.5L V6:



  • Viscosity: 5W-30 is the standard recommendation for this engine in most climates.

  • Oil type: Use synthetic-blend or full-synthetic motor oil that meets Chrysler MS-6395 specifications.

  • Climate notes: Some climates may tolerate or require different viscosities; refer to your owner's manual for exact guidance.


As a practical rule, use a 5W-30 oil that meets Chrysler MS-6395, and replace the filter at the same interval. If you need to switch brands, choose a reputable brand and confirm the oil meets the required spec.


5.7L Hemi


What to know about oil for the 5.7L Hemi:



  • Viscosity: 5W-20 is the primary recommendation; 5W-30 can be used in certain climates or as advised by the owner's manual.

  • Oil type: Use synthetic-blend or full-synthetic motor oil that meets Chrysler MS-6395 specifications.

  • Climate notes: Warmer climates or higher-mileage engines may follow the manual’s guidance on viscosity and grade.


For the Hemi, maintain the oil with the same MS-6395 standard and follow the vehicle's climate and mileage guidelines when choosing viscosity.


Summary


In short, a 2005 Dodge Magnum doesn’t have a single oil specification. The correct oil depends on the engine you have. The 3.5L V6 generally uses 5W-30, while the 5.7L Hemi commonly uses 5W-20 (with 5W-30 as an alternative in some conditions). Always confirm the exact specification on the engine oil cap or the door jamb sticker and in the owner's manual, and use oil that meets Chrysler MS-6395.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.