Hello. I have mitsubishi EK Wagon 2014 model. For the past few months, I'm experiencing performance issues with my car. The fuel average suddenly dropped from 23 to 17, car feels heavy to run. As my car is 112,000 km driven on the same engine, the mechanic has suggested me to replace the gear oil as the car has already crossed 100,000 km. I don't have much knowledge regarding car components except engine oils. I want any one of you to kindly suggest to me a good gear oil that is readily available in the market, especially in Karachi. And kindly also guide what else is needed to be replaced related to maintaining the efficiency of car. Thanks
