When I bought my 2012 civic EX at 45000km(28000 miles) last summer I was able to go as low as 6.2l/100km(37.9 mpg). Then the cold winter came and the consumption went as high as 8.5l/100km(27.6 mpg) during the whole winter. And I guess this is normal in winter time. Now the warm weather is back to 27-30 deg Celsius(80-86 Fahrenheit) and I cannot go as low as last summer. I'm stuck at 7.0l/100km(33.9 mpg). I know it is not a big difference but I would like to know what can be the cause ? Same driving habits. Econ was on last summer as it is right now.
Throw whatever you can think of.
- Spark plugs ?
- Tyres ? they are at about 5-6 32th.
- Air filter ?
The car is now 62000 km(38000 miles). Oil has been changed as per iMid.