The Ford Endeavour comes with type power engine like 2499cc diesel which delivers average mileage of 7.7 kmpl in city and 10.9 kmpl on highway; the 2953 cc diesel engine 4x2 AT delivers 8.5 kmpl in city and 12.8 kmpl on highway. Meanwhile 2953 cc diesel blessed 4x4 Endeavour gives mileage of 9.3kmpl in city and 12.8 kmpl in city.
Mileage of the car depends on your driving style like braking frequency, traffic and engine service.
For further details about the car please visit the given link in body text.
As you said that you have purchase a used car, so there could be some problem in the car, which is decreasing your fuel economy. However, the general problems are wear or misalignment in any drive system, fuel system or engine components. So we recommend you to get your car checked by an experienced technician at Ford service station. To get the contact details of your nearest Ford service station, please visit the link below-
Price of a used car, depends on the condition, brand value, previous running and the current price of the new car in same model. So as we have not seen the car you are going to buy, we can't suggest you the exact price of that car. However, the approximate market value of a 90,000 kms used Ford Endeavour 4X4 manual is around Rs. 7 lakhs. We can't say anything about the mileage of a used car because it depends on the maintenance of the car. You must have to check the car from an experienced technician before buying it. He will tell you about the condition of the car and the exact value of the same. To see more options of used cars in your city, please visit the link below-