Talleres is a club that represents many drivers who feel lost in the world of auto repair shops. Many of them do not understand the technical language used by mechanics, leaving them vulnerable to potential scams. Mario Díaz, a mechanic from Garaje 13, has shared his experience regarding deceptive practices that some workshops use to take advantage of drivers. One of the most common techniques is to claim that the oil and filter of a car have been changed when, in fact, nothing has been done. This type of fraud is difficult to detect for those without mechanical knowledge. To check if the oil has been changed, drivers should observe its color; if it is clear and shiny, it indicates that the change has been made, whereas black oil suggests otherwise. Although this practice is not common, it is important for drivers to stay alert. Mario also denies the notion that mechanics invent non-existent faults, something he has never witnessed in his career. Consumer organizations closely monitor these irregularities and offer the option to report workshops that commit fraud.