How to set of ev operation only

Check in at http://fordcmaxhybridforum.com/

Thanks. I will check it out.

Button in front of the shift knob (under the climate control, next to the Fuel Door Release button) lets you select one of three modes: AUTO, EV Now, or EV LATER. However, EV availability is limited to at least the following variables: 1) Charge level of the Plug-in battery (available mileage estimate may be displayed via the control settings). 2) Cold Temperatures - heat comes from the engine, so the engine runs until it reaches a sufficient temperature to heat the cabin (see alternatives below). 3) System Efficiency - rarely but occasionally, the engine may run while you may expect it not to because it's got plenty of charge remaining; this is system maintenance and does not last long. Using the Remote Start, you may pre-heat the seats (the heater still runs the engine awhile), or run the air conditioner from AC shore power in order to prepare the cabin temperature prior to driving; thereby preserving battery energy for driving only. I wear my coat when it's cold and don't bother running the heat (during EV mode) unless the windows get foggy, or it's too darn cold to care about a little gasoline.

at what speed will the engine go from battery to gasoline in cmax hybrid