Holy freakin crap. Since I last filled up, I had driven about 40 miles. Ten of this with the autozone pcv valve, ten around town with the ACdelco PCV valve, and 20 on the freeway driving very agressively. I topped of the tank, did the math, and was getting on average 23.57MPG. I sure do hope this will continue.
On another note, the guy at the dealership was a complete jerk. He was extremely condescending, and basically told me I was an idiot to listen to someone off of the internet. He went on to say that it is not possible for the valve to effect mileage, and even tried explaining to me where it was located, even though I had just replaced one. Some people....
Edit: I am still interested in either a warm or a cold air intake. If someone with first hand experience could give me some rough numbers on the effects of each as far as performance and mileage, it would be greatly appreciated.
