Sitting in Houlton ME in a nice campground. "My Brothers Place". Crossing into CA tomorrow for 2 days then down to BAr Harbor and Acadia. Enjoyed the beautiful fall foliage on the way in, gorgeous. A special thanks to bgolden for the Fuelio App suggestion. It is great. Also thanks to the member whose post I couldnt locate quickly, for the special air filter suggestion. My husband bought a lifetime air filter (don't know the name) and replaced it, adjusted the tire pressure down to the ratings in the door, not the 80lbs that the guys used when we got our tires rotated & front end aligned. I am thrilled to report that our last first two tanks on this trip were 10.2 mpg, up from the 8.5 that we got when I started this thread. Not sure exactly what worked, but we are grateful for the improvement. Thanks for sharing all the wisdom and experience.
On another note, after a terrible drive in slow traffic, road construction, we pulled into a Cracker Barrel at 7 pm for a quick meal and free overnight since we were too tired to go to a campground. Parking lot was empty when we shut down but this morning there was another PC in the lot. So all the PCs are inMaine!