I currently own a 2010 Honda Civic 1.8L and a 2012 Honda Jazz(Philippines) / Fit (USA and Japan) 1.5L. I just purchased a second hand Jazz/Fit about 2 weeks ago and the mileage is 32xxx. Btw we use Kilometers and Liters.
Upon getting the car. The reading is 8.5km/L according to the multi gauge display. So it was okay okay to me but the usual reading that I've researched from other jazz/fit owners was 9-11 km/l on city driving and about 12-14 km/l for highway driving conditions.
So I was a bit bothered for its fuel consumption so I replaced the engine oil with Honda Lev Fully Synthetic, OEM oil / air filters, Iridium Spark Plugs (Denso), replaced the transmission filter and ATF by Honda. And also I replaced the 4 tires because the tread is about 40-50%.
Upon replacing it I was surprised that I'm getting 7.5km/l on city driving. It actually went down from the 8.5km/l and its supposed to be fuel efficient because I just replaced the needed parts.
Any recommendation or advice that I need to do?
Thank you everyone!