a lift itself shouldnt hurt fuel economy, it is when you start adding the accesories....bigger tires, stronger/hevier bumpers, roof rack..... as far as a lift, depends on what you want it for. I have a 93 ZJ, and I think it sits low, so I am actually thinking about getting some lift "pucs" that go between the spring and the spring mount. tere again, it is my family dd. if I wer gonna go all out and make it a toy, I would go even bigget with a full lift, bigger tires, and accesories.
JEEP.......not just a vehicle.........its a lifestyle!!