Purchasing a hybrid vehicle is a great first step to living a greener, more eco-friendly lifestyle. More can be done to increase efficiency. The most effective way to increase efficiency is not to speed, traveling at 65 m.p.h. rather than 75 m.p.h. Following the speed limit can reduce fuel consumption by up to 10%. It also prevents unneeded wear on the motor, that can further decrease fuel efficiency. A simple way to increase efficiency and safety.