The 2.4 L Lancer, which uses the 4B12 engine family, typically uses 5W-30 engine oil in a full-synthetic or synthetic-blend form, with about 4.8 quarts (4.5 liters) required for a full change including the filter. Always verify the exact specification for your year and market in the owner’s manual or on the under-hood sticker.
Oil requirements can vary by model year and climate, so while 5W-30 is the common default, some versions or regions may specify different viscosities or oil standards. The guidelines below reflect the typical specifications you'll encounter for most 2.4 L Lancers and what to double-check before you buy or service the car.
Oil specifications for the 4B12 2.4 L Lancer
Before listing the standard guidelines, note that exact oil grade and spec can vary. The following reflect common practice for many 2.4 L Lancer applications.
Viscosity and oil type
Before the list begins, here are the typical recommendations you’ll see for this engine family. The exact choice should match your manual and regional specs.
- Viscosity: 5W-30 is the default recommendation for most climates and model years.
- Oil type: Full synthetic or synthetic-blend oils are preferred. Mineral oils are generally not recommended for modern 4B12 applications aiming for longer change intervals.
- Oil specifications: Look for oil that meets API SN (or newer) and ILSAC GF-5 or GF-6 standards. OEM-recommended Mitsubishi oils are acceptable too.
Concluding note: Always confirm the exact grade and specification for your vehicle with the owner's manual or dealer, as regional guidelines may differ.
Capacity and service interval
Before the list: here are the typical capacity figures and change intervals you’ll encounter for a 2.4 L Lancer with filter change.
- Oil capacity (including filter): approximately 4.8 quarts (about 4.5 liters).
- Recommended change interval: roughly every 5,000–7,500 miles (8,000–12,000 km) under normal driving; more frequent changes may be advised under severe service (extreme heat/cold, heavy towing, or frequent short trips).
Concluding note: If you use a synthetic oil, some owners extend the interval toward the upper end of your vehicle’s recommended range, but always follow the manual and any dash-indicator guidance.
Practical tips for choosing oil
These practical tips help ensure you’re aligned with the vehicle’s requirements and your local conditions.
Before the list: a quick reminder that alignment with the owner’s manual is essential, since specifications can vary by year and market.
- Choose oil that meets API SN or newer and ILSAC GF-5/GF-6 standards.
- Prefer full synthetic oil for better protection and longer drain intervals, especially in extreme temperatures or demanding driving.
- Check the exact viscosity recommended for your climate and model year in the owner’s manual or the dealership.
Concluding note: When in doubt, opt for Mitsubishi-recommended or OEM-approved oil to ensure compatibility with the 4B12 engine’s tolerances and tolerances.
Summary
For a 2.4 L Lancer, the most common specification is 5W-30 engine oil, in a full-synthetic or synthetic-blend form, with a total capacity of about 4.8 quarts (4.5 liters) including the oil filter. Always verify the exact grade, standard (API/ILSAC), and capacity in your vehicle’s owner's manual or on the under-hood label, as requirements can vary by model year and region. Regular oil changes in accordance with the manual help maintain engine performance and longevity.


