questions is pretty straight foward im looking to get a RCD 6" lift w/ 35" tires ive been hearing mixed feelings on the MPG (miles per gallon) some people (who arent GM owners) are saying that ill regrete lifting my 2004 tahoe if im concerned about gas but everyone for the most part that own lifted GM vehicals say that they are getting roughly the same MPG as they were when their suspension was stock. jus looking for more thoughts. thanks