Zuldoon replied to Wagen's topic in Operation and Maintenance: 451 Model, 2008-2015, gasolineToo right. If it's not broke, don't fix it. I'm a new owner and discovered the hard way about 'stop start' and Eco mode. The traffic in London UK is constant stop/start, tedious hearing the engine constantly restarting, never mind belt wear. So I just switch Eco off as part of initial startup. I can afford the miniscule amount of fuel it saves.