The currently existing system of technical maintenance and repairs is outdated, it does not meet the modern requirements of the economy, which does not allow to determine the optimal resource car. There was analysis of methods for determining the mileage to retirement vehicle. This article reveals the heart of existing methods justification the withdrawal of car exploitation and provides a brief analysis of these methods. Are five main groups of methods, each of them is subdivided into several methods for calculating the resource vehicle. There is derivation about the analysis of the existing methods for determining the mileage to retirement vehicle.