The 2.3 Turbo (K23A1) engine can be filled with one of the following oils: Castrol Magnatec AP 5W-30Mobil1 x1 5w30 (2400r)Kixx G 5W30Petro-Canada Supreme Synthetic 5W-20 Oil filter – MAHLE OC 617Change intervals – every 10-15,000 km or once a year, whichever comes first.