I have a 2002 Honda Accord, 2.3 litre. As per specification, it should run about 100 km/10 litres in city as well as 100 km/7.2 litres upon highway. But it’s giving me an normal mileage of 100km/10 litres where we expostulate many upon highways. What have been a ways to revive potency to my 2002 Accord?