GM is too. They call theirs "Active Fuel Management". http://en.wikipedia.org/wiki/Active_Fuel_Management At 09:15 AM 7/29/2008, David Scheidt wrote: >Dodge is now selling something along those lines in some of its big V8 beasts. >They're better at it then GM was, but the economy gains aren't very big. >-- >David Scheidt >dmscheidt at gmail.com