not me, its been hard to update everytime I have to pull up onlineconversion.com so instead i just update my signiature everytime i fill up my gas tank.

i got around 20 km a liter when i drove a civic 5 spd using advanced hypermiler techniques
and now I drive a salvage nwh20 prius that gets almost to 25 km/l with 195,000 km to date.