I know lots of people that do turn back the odometer,but as far as I know it`s against the law to do so.Here in NB,the province can charge a person with fraud for turning back odometers,no matter the year of the vehicle.I`d check with local laws before turning back the #s.If you want to keep track of how many miles you put on your car,mark them in some sort of a log book,and keep it in the glove box,that is what I have been doing for years.