Why is my car using more fuel?
Why is my car using more fuel? Faulty Engine/Engine Issues A damaged engine cannot work properly and in turn, can consume more fuel. For instance, a faulty spark plug or O2 sensor in a petrol engine and a dirty fuel injector in a diesel engine can cause more consumption of fuel resulting in low fuel mileage. Are there any problems with the fuel system? Fuel system related problems can be difficult to solve. Anything that might affect the flow and pressure of the fuel system is going to result in poorer performance. By far, The biggest cause of any problems...