Is it normal for the fuel consumption of a Honda City to increase from 5.4L to 5.9L after an oil change?

What is the fuel consumption of the S80 3.0 in the city and on the highway? If it is tuned with a Stage 1 performance program, does the fuel consumption increase?

Can I change to Honda's 5W20 engine oil?

Which engine oil is suitable for a Honda City with 58,000 kilometers?

Looking to acquire a Honda City from 2009-2012.

Is it normal for a 2012 Sunny automatic to show a fuel consumption of 7.8 after running 1,000 km on the highway? The usual city driving fuel consumption is 8.9, is it considered high? How can I check and reduce it...

I have a 2011 Honda City, and its fuel consumption is usually 6.5L/100km. It's not really fuel-efficient.

My 2013 manual Honda City has a fuel consumption of around 6.7. Is that a bit high? How's your fuel consumption?

What is a reasonable fuel consumption for a 2011 Honda City automatic?

I changed the engine oil from 5w30 to 5w40, and the fuel consumption increased by nearly a liter. I'm so regretful!

Is it normal for the fuel consumption of a Honda City to increase from 5.4L to 5.9L after an oil change?