The 2009 Mitsubishi Eclipse generally calls for 5W-30 motor oil, in synthetic or synthetic-blend form. The exact grade is largely the same across the available engines, but climate and regional recommendations can influence the ideal variant. Always check the owner's manual or consult a Mitsubishi dealer for your specific setup.
In detail, the Eclipse lineup for 2009 offered at least two engine choices, and oil requirements tend to follow similar viscosity guidelines across those options. This article breaks down the guidance by engine type and then covers general maintenance considerations to help you stay on schedule with oil changes and proper lubrication.
Engine options and oil requirements
Here's how oil recommendations break down by engine option for the 2009 Eclipse.
- 2.4-liter four-cylinder engine: Use 5W-30 synthetic oil (or a high-quality synthetic blend). Ensure the oil meets API SN/ILSAC GF-5 (or newer) specifications as specified by Mitsubishi.
- 3.8-liter V6 engine: Use 5W-30 synthetic oil (or a high-quality synthetic blend). The same API/ILSAC specification guidance applies, with climate-based adjustments if recommended in your manual.
In short, 5W-30 synthetic oil is the standard recommendation for both engines in the 2009 Eclipse, with the exact variant (full synthetic vs. synthetic blend) guided by climate and manual specifications.
Oil quality and maintenance tips
Before you head to the store or the service bay, keep these notes in mind to ensure you’re using the right product and maintaining proper lubrication.
- Choose a high-quality synthetic or synthetic-blend 5W-30 oil that meets API SN/ILSAC GF-5 or newer specifications.
- Confirm any climate-specific guidance in the owner’s manual; some regions may have approved variations in viscosity.
- When in doubt, err on the side of a reputable full-synthetic oil to maximize protection and extend change intervals.
- Follow Mitsubishi’s recommended oil-change interval based on driving conditions and maintenance minder, typically more flexible with synthetic oils than with conventional oil.
Bottom line: for a 2009 Eclipse, 5W-30 synthetic oil is the standard choice across engines, with quality and climate considerations guiding the exact product you buy and how often you change it.
Summary
The 2009 Mitsubishi Eclipse primarily requires 5W-30 motor oil, available in synthetic or synthetic-blend formulations. This recommendation applies to both the available engines, though climate and vehicle specifics should be verified in the owner’s manual. Use a high-quality oil meeting API SN/ILSAC GF-5 or newer, and adhere to Mitsubishi’s maintenance schedule to maintain engine health and performance.