Reply To: Is the 2.7L V6 EcoBoost in Fusion Sport reliable? › Forums › Car Problems & Maintenance › Is the 2.7L V6 EcoBoost in Fusion Sport reliable? May 5, 2025 at 7:27 pm #364 Rusty 2.7 is the most reliable EcoBoost. Change the oil on time and it will treat you good.