I drive an 02 Jeep Grand Cherokee 4x4 automatic. I am trying to get more mileage out of it. I have read the beating epa estimates and reading as much as I can on here about hypermiling techniques. The jeep has computer that tracks average MPG, 2 trip counters, instant MPG, and outside temp. I pretty much keep an eye on either average or instant MPG. The daily commute consists of some congested interstate and city driving. I drop my kids off at school which accounts for city driving or my commute would be just about be all highway. Approximately 10 miles total one way. Getting on interstate is always backed up and congested. I pretty much try to keep moving in merge lane until out of road. I can usually slip in an opening as traffic is stop and go. Then its stop and go for about half mile before opening up with better flow with speeds around 55. About 5 miles then I get off interstate and hit 2 red lights before going up hill with stop sign every block. After dropping off children I have more stop signs and traffic lights. The lights are timed well so I only have to stop at one if at all. I then travel up and over a small bridge with nice downhill to a red light. Sometimes I can shift to neutral and FAS just before going up and over the bridge down to red light. Other times I just shift to neutral and glide. The rest of the way is several stop lights. At least one is a light at bottom of hill and I can FAS glide to a stop. I'm just wondering if doing FAS is ok on engine and transmission? I'm figuring that its such a short time period that it shouldn't hurt if no oil is pumped to lubricated parts. I'm also wondering if doing NICE is putting more wear on transmission? I mostly do NICE when I know my speed will decrease below 30 mph. If I NICE at higher speeds the transmission hunts for the proper gear for that speed. So pulse and glide, NICE at highway speeds doesn't work for me. I can do pulse and glide without NICE but with these all terrain tires it doesn't seem to help. Speed drops immediately. What is a good acceleration for doing pulse and glide? Do you accelerate quickly, slowly, or in between to your max speed? I try to keep RPMs below 2000. I did pump up tires to 38 psi which is above max on sidewall of 35 psi. That seemed to give me about half a MPG on this last tank. I also had a recent oil change so that is good. Any other suggestions? I would ride my bike if I didn't have to shuttle my children to school. I am also looking for a new ride. Considering a new prius, HCH, or Vibe. Also considering a used car like a Civic or something. My mechanic brother-in-law says hybrids are not good but he doesn't work in the auto field any more and he says go with diesel. I think diesel costs too much and you either have to buy truck or compact car.