Renault Duster is designed to grapple all types of roads and tracks. The top-end Duster has a claimed mileage of 19 kmpl. In real world conditions, with slightly enthusiastic hill-driving we got close to 12 kmpl (as displayed on the MFD) and on the limited highway stretch we got about 15.9 kmpl.
PS is the German unit of power, 85 PS means that this car generates 85 PS of power and RXE is the name of the variant. It has got a 110 PS variant also which means that the engine is tuned to generate 110 PS of power.
The petrol variants of Duster and Terrano return a low mileage of around 12-13 kmpl, therefore it is advisable to go with diesel variants. Also, the K9K diesel engine performs better than the 1.6-litre petrol engine.