Hello, I have a problem with Opel Meriva 1.6 gasoline 2007 mileage 180 thousand The car burns on a route of 6l economical driving and in a city of 12l and it is not on a cold engine but warm. Last time average fuel consumption was 9l. Coil new candles also lambda probe ok. On the route burning ok but the city so much. I drive without air conditioning.