What Kind Of Oil Does A Mitsubishi Eclipse Take

Advanced Full Synthetic Motor Oil, 5 Quart, Mobil 1 (Part No. 14991)

Can 5W-30 be used in place of 5W-20?

It is generally not advised to substitute 5w30 oil (or any other oil weight) for 5w20 oil because even a small viscosity change has the potential to harm your engine.