Mazda CX-5’s SKYACTIV-G 2.0 and 2.5 engines have both received updates to reduce internal friction, which increases low-end torque, while also reducing real-world fuel consumption and particulate matter formation during combustion. These changes are implemented to reduce the amount customers will spend on fuel, but no feature stands out more than Mazda’s segment-exclusive cylinder-deactivation technology in the SKYACTIV-G 2.5L engine. The engine introduces the ability to imperceptible shut down the two outside cylinders at cruising speeds to maximize efficiency. Running on two cylinders reduces pumping loss and mechanical resistance. This is designed to assist in improving real-world efficiency rather than simply in catalogued evaluations and comes standard on CX-5 GS and GT models.