Hey guys, I made my annual Daddy Daughter trip out to Skyline Drive today in the 40 and on the way home on 66 I had a random loss of power while going 55-60 MPH. I drove out 66 this morning any didn't feel anything like it. Basically it felt like either fuel or spark totally went out for only about a second which wouldn't have been that bad had I not been going 55-60 on 66 while everyone else around and behind me was going 75-85. After it happened a handful of times over 15 miles I jumped off 66 and took 55 (which turns back on to 66 for a few miles ) to Gainesville before taking 4 lanes wide and lit up 66 the rest of the way to Fairfax County Parkway. The hesitation happened again 3-4 times in the 15 miles of 66 before jumping off and once more on the parkway. Anyone have any thoughts on this? The only thing different between before and after, except ~100 miles of Skyline Drive is I topped off the tank with 8 gallons of Non-Ethanol Liberty 87 in Front Royal. I don't know if I've ever experienced bad gas but I wouldn't think only slightly more than half a tank full would effect it this much. The 40 ran fine this morning on 66 then 35-40 MPH the rest of the day down and up Skyline Drive.