True Ford Enthusiast. 5.1k. Name: Isetta. Ford Model: Fiesta Style 1.5tdci Econetic 2015 year. Ford Year: 2015. UK/Ireland Location: Sussex. Posted September 11, 2021. I think all modern engines are interference engines, I doubt if there have been any non-interference engines in last 20-30 years but I might be wrong. 1. Could someone give me some advice on the current issue I have with my Ford Focus. Its a bit of a story but I will keep to the facts about what I know. Purchased the car a Focus Estate Ghia Mk2 55 reg 2.0 petrol Duratec HE. IVDGJ8.