2003 Deville Base
Over the years most of the cars, trucks and motorcycles I've owned have a sweet spot in MPH. My Mercury likes 78. My F150 likes 68 (it has a trailer tow package & C6 tranny). My last Yamaha Roadstar liked 85. My 2003 DeVille seems to like 81 (which recently got me a ticket). Do your vehicles have a sweet spot?