Maintenance = better mpg?
So recently I watched my maintenance minder pass 15%, 10, 5 then it started counding negative miles. The time was B123, and I had 30,200 miles on the 2011 insight. I just bought new michelin defenders 285/60/15 the weekend before I took the car in for the oil change and transmission fluid change. I noticed my previous mpg per tank dropping 1 to 2 mpg per tank, down to about 40mpg per tank(average of 44.5), and over the last 5K miles noticed a jerky condition when accelerating. So after the work and a fresh top off of fuel from my normal store, the very next tank was 49mpg, a 9mpg change for no change in driving habits at all... I would like to think the dealer added a firmware update? I will have to confirm the increase on the following tanks, but seems odd. Has anyone else noticed after maintenance their mpg increasing? I have read after 5k, 10k and 20k miles the car breaks in and mpg increases, but just curious if it is a fluke or if others have seen the same result.
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