[kayi078]

my first thread, searched but still confused

my corolla got 26 MPG in average which is pretty low and i plan to buy something that can help improve my heavy foot....is Kiwi MPG Meter OBDII any good??? how hard to get it install? i will let my mechanic to install but does it require any adjustment?? someone comment this product on youtube and said that its inaccurate and so hard to make it works,,,,,,so should i buy it?? pick up price is $70 and 30 days return policy....the vehicle speed features attract me so much and i always jealous to Honda civic digital speedometer,,,