The CO2 and fuel consumption figures are derived from laboratory tests according to EEC Directive 80/1268/EEC and subsequent amendments and are carried out by all vehicle manufacturers.
They are intended as a comparison between makes and models of vehicles.
They are not intended to represent the real world fuel consumption you may get from your vehicle. Real world fuel consumption is governed by many factors including; driving style, high speed driving, stop/start driving, air conditioning usage, the accessories fitted and towing etc.
Your Ford dealer can give you advice on improving your fuel consumption.
Ford Focus Piston Selection - Engine System
NOTE: The cylinder bore must be within the specifications for taper
and out-of-round before fitting a piston.
Select a piston size based on the cylinder bore.
NOTE: For precision fit, new pistons are divided into 3 categories
within each size range based on their relative pos ...