The short answer is that most Mitsubishi Eclipse models use SAE 5W-30 engine oil. The exact viscosity and whether conventional or synthetic oil is recommended depend on the engine and model year. Always confirm the specification in the owner’s manual or with a Mitsubishi technician.
Because the Eclipse spans multiple generations and engine options, oil requirements can vary. This article outlines the typical guidance by engine family and offers practical steps to verify the correct oil for your specific car.
Oil requirements by engine and generation
The following list summarizes common guidance for the major Eclipse engine families. Use this as a starting point, but always verify with your owner’s manual or dealer resources.
1990–1994 Eclipse (1.8L and 2.0L engines): Common guidance is SAE 5W-30, with either conventional or synthetic oil acceptable depending on climate and mileage. Check the manual for exact specification and any API requirements.
1995–1999 Eclipse (2.0L and 2.4L engines): Typical recommendation is SAE 5W-30; synthetic oil is often favored in extreme temperatures or high-mileage engines, but confirm the specification in your manual.
2000–2005 Eclipse (2.4L and 3.0L V6 GT): Primary guidance remains SAE 5W-30; some markets or conditions allow slightly different viscosities (such as 5W-20) but the standard in most manuals is 5W-30.
In practice, 5W-30 synthetic oil is a safe default for most Eclipse configurations, especially if you drive in moderate to hot climates or want extended oil-change intervals. If you live in very cold environments or have higher-mileage or high-stress driving, synthetic 5W-30 or a conventional 5W-30 that meets the API/ILSAC specification is typically recommended. Always verify against your specific model year and engine code.
Concluding guidance: the exact oil specification can vary by year and engine, and some markets may list 5W-20 or other variants as acceptable. When in doubt, consult the owner’s manual, the under-hood oil cap/sticker, or contact a Mitsubishi service professional to confirm the correct grade and specification for your Eclipse.
How to confirm the correct oil for your Eclipse
To ensure you’re using the right oil for your exact vehicle, follow these steps:
- Check the owner’s manual for the recommended viscosity (for example, 5W-30) and approved API/ILSAC specifications.
- Look at the under-hood sticker or oil-fill cap, which often lists the required viscosity and specification.
- Know your engine code (for example, 4G63, 4G64, or the 3.0L V6) since recommendations can differ between engines within the Eclipse lineup.
- If you’re unsure, contact a Mitsubishi dealer or a qualified mechanic with your vehicle’s year, engine, and trim to confirm the exact specification.
After selecting the correct oil, use a high-quality oil that meets the listed specification (API SN/ILSAC GF-5 or newer, as appropriate) and consider a full-synthetic oil for better protection and performance in many driving conditions.
Summary
For most Mitsubishi Eclipse models, SAE 5W-30 is the standard recommendation, with conventional or synthetic options depending on the engine and climate. Verify the precise viscosity and specification for your specific year and engine through the owner’s manual or a Mitsubishi-certified technician. When in doubt, favor synthetic 5W-30 that meets the correct API/ILSAC standard to help protect engine longevity and performance.
What oil does a Mitsubishi Eclipse use?
Mobil 1 – High Mileage 10W-30 Full Synthetic Motor Oil, Extends Engine Life, 5 Quart (Part No. 14995)
What oil does a 2007 Mitsubishi Eclipse use?
2007 Mitsubishi Eclipse Spyder technical and mechanical specifications
| ENGINE | GS | GT |
|---|---|---|
| Engine Oil Type | 5W-20 | 5W-20 |
| Engine Oil Capacity (qt/L) | 3.2-4.2/3.0-4.0 | 3.2-4.2/3.0-4.0 |
| TRANSMISSION TYPES | GS | GT |
| Drive Train | 2WD |
What kind of oil does a 2009 Mitsubishi Eclipse take?
Oil Grade: SM
| Viscosity: | 10W-30 (Above 38°C) 5W-20 (Below 38°C) - SAE 5W-20 is preferred. |
|---|---|
| Capacity: | 4.5 quarts (with filter). After refill check oil level. |
| Torque: | 26-32 ft/lbs (Oil Drain Plug) |
Which oil is better, 5W30 or 10W30?
The difference, though, is in the first number—the “5” or “10” before the W. This means at below-freezing temperatures, 5W30 is generally thinner (flowier) than 10W30. They also differ in their lowest operating temperature. 5W30 will still flow at temperatures as low as -22°F, while 10W30 will only work until 0°F.


