Posted on 7/29/2025
One of the main reasons drivers choose a Toyota Prius is its impressive fuel economy. Designed with hybrid technology to minimize fuel use, the Prius often delivers exceptional mileage compared to traditional gas-powered vehicles. But over time, some Prius owners notice a dip in MPG that can be frustrating—and sometimes confusing. If your Prius isn’t performing as efficiently as it used to, several factors could be at play. Learning what causes fuel economy to drop can help you take the right steps to restore efficiency and keep your hybrid system running smoothly. Changes in Driving Habits or Environment Not every drop in fuel efficiency points to a mechanical problem. Sometimes, a change in your daily driving routine is all it takes to impact your MPG. Short trips where the engine doesn’t warm up fully, increased idling, or more stop-and-go traffic can all reduce fuel economy. Cold weather also plays a role, as the hybrid system may run the gaso ... read more