The results of the 2012-2013 TCO analyses are even more promising than the results of the previous 2010-2011 study. Overall, the results of the TCO analyses show that diesel vehicles provide owners with a TCO that in many cases is much less than that of the gasoline versions of the same vehicles. The estimates of savings for three and five years of ownership vary from a low of $929 in three years to a high of $19,505 in five years, but most of the savings are in the $2,000 to $7,000 range, which also include the extra cost that is usually added to the original price of the diesel version of a vehicle. Though there are some exceptions to these positive results for some of the diesel versions of vehicles from a TCO perspective, the overall direction of the results supports the idea that diesel vehicles compete well within the U.S. market. In particular, the idea that buyers can get a return on their initial higher investment in a diesel vehicle within three years is a very positive sign, considering that new vehicle buyers tend to keep their new vehicles for an average of three to five years.