Hi Irfan and all my PW friends;
I have recently bought a Honda Civic Exi Prosmatec model 2005. Only 44000 kms done in original condition and sealed engine. The car has been running on petrol and never been on CNG.
I drive mostly in city. The car was giving an average of 6.5 kms/litre.
The following was replaced with no improvement:
1. Engine Oil (Shell)
2. Oil Filter (Guard)
3. Spark Plugs (NGK)
4. Throttle body/Carbeurator cleaned with Nasa carbeurator cleaner by just removing the air filter.
5. Air Filter was clean, thus not changed.
In spite of all these changes, the noted mileage was 6.9 kms/liter (checked on 10 liter filling).
The process of calculating mileage is that I fill up the tank with 10l of petrol upon lighting-up of the 'yellow' light indicator showing less fuel till the next time it lits up again and see the total mileage covered. It covered exactly 69.5 kms in 10 liters of petrol with AC.
Fyi, the car has 195/65/15 Michelin tyres. Thus, do not see major effect due to these.
I don't smell any petrol but wonder if there is any minor leakage or possiblity of fuel evaporation???
Later, took the car for computerized tuning. The technician/mechanic adjusted the CO emission (which was high and reduced it to 1.04), reduced the petrol utilzation (adjusted somewhere from behind the glove compartment), adjusted the spark plugs guage from 100 to 90, checked fuel lines and joints for leakage (and found none).
He was also of the opinion that the engine is extremely perfect and that the car is not drinking petrol... but then where is all the fuel going??? is still a question mark.
I use Shell for petrol. He suggested to change the filling station and evaluate performance after these adjustments but still in vain.
@Irfan, appreciate if you could advise me details and contact of the mechanic/workshop you took your car to for adjustments and resolving the issue.
All PWs, please help!!! I am extremely upset with this situation. Please help!!!