It’s been quite some time since I noticed that the mileage my hybrid’s MPG gauge reported was about 5% higher than what I calculated using the trip odometer and the volume of gas off the pump. In today’s mail, I received notice of a class-action lawsuit against Honda, claiming the odometer on all Hondas sold between 2002 and 2006 reads 2-4% higher than the actual mileage. It took me a little while to figure out they’re probably not related (the MPG gauge is calculating the mileage based on the same odometer figure I am, so we should get the same figure), but it’s interesting none the less.