Active Shutter Grille Vents: How They Help Improve MPG

by Nikki Gordon-Bloomfield
Green Car Reports
October 8, 2012

Over the past few years, more automakers than ever have started to promote something called active shutter grille vents.

Essentially a way to boost fuel economy at higher speeds, active grill shutters are now being used by GM, Ford, and Chrysler–among others–to give gas mileage boosts to their highest-efficiency models.

Read more…


Opinion and Analysis