I know this question has probabley been asked a thousand times but, what computer chip is best for fuel economy? I have a 95 Ford Explorer 4.0L V6.

 

I think about any chip or tunner will get you 1 to 3 miles depends on your foot.

 

I really don't think that you can expect alot of improvement with gas engines with chips and/or tuners. I have seen some material on the affect of tuners specifically on gas engines and from what I can recall the tuner companies that were used in the article were more conservative of mpg gains then they were with their diesel counterparts, but it also depends a great deal on what Chance was saying on how heavy your foot is. I think diesel's have a much better chance of mpg improvements, but I don't know much about their affect on gas engines, I've always had diesels, I've seen personally a gain(basing it off the computer on my messenger center in the truck) of 3.7 mpg over what I was getting from my previous diesel truck and I didn't have any performance additions in that one.