Adulteration of diesel and petrol is a common malpractice observed worldwide. Fuel adulteration affects adversely on engine and its components along with increased emission level of carcinogenic gases leading to growing ecological & Health concerns. This paper proposes a technology which will individually detect the level of fuel adulteration, accuracy of refueled Quantity and Engine performances like Fuel Economy and Emission caused between consecutive refueling Intervals. All such results will be shared among the vehicle users using the technology of IoT and connected cars. This system will also have a smart phone interface for user to analyze the information given by the system. This technology comprises of Global Positioning system(GPS), A GPRS wireless communication, blue-tooth communication protocol for information exchange with the smart phone, and a sensor system for detecting quantity and quality experience of Refueled fuel. This entire system will run on automotive gradient controller which will be assisted by a software algorithm.