Recently did some work on my Corolla Se Saloon Auto 03 Model. Replaced suspension, foundations, axle and some other stuff. Got the engine bay cleaned too and the mechanic serviced the throttle body as well.
Previously the car used to do around 110 KM in 1000 Rs which I thought was low but now the car is giving me alarmingly low mileage.
It is now giving me around 60 KM in 1000Rs.
Yesterday i topped up fuel for 1700 and the reserve light was on after only 35 KM. The car is driven on petrol only.
Engine Oil, Air Filter, Oil Filter etc are always changed on 4000 KMs. Spark plugs were also checked they are fine.
What could be the problem and what is the solution ?