Well, I just now obtained 100 miles to the first 1/4 tank of gas. I've never had gas mileage this good before. A good portion of this was highway mileage but a large portion was also in town mileage too. I also have floored it a couple of times this tank. I've added a pretty large oil filter magnet to my oil filter and I'm using about 5oz. of Lucas fuel conditioner at each tank. How much that is helping, I'm not sure. Just thought I'de share my results with you guys.