Hey Scotty I really need your help with this one. I have a 2017 Honda Accord Touring V6 with 53k miles on it. When I drive between 70-85mph my car has an annoying shake, its not the steering wheel its the entire vehicle. Ive brought it to the dealer several times and each time they suggested something that would “fix” it but never does. Ive done everything from putting a set of new factory OEM Michelin Primacy tires, new rims, new struts, alignment, regular tire balance, road force balance, New pads and rotors, nothing. The majority excluding tires was all thankfully covered under warranty but the dealer finally gave up and told me there was nothing more they can do. This is very frustrating because I do a lot of highway driving where I'm always cruising at 80mph and the entire time the vehicle shakes. There has never been an accident with the vehicle. I take very good care of the vehicle, I put amsoil in it every 5k miles along with a tire rotation, I keep up with all the factory suggested “extreme conditions” maintenances so everything gets done ahead of time. What can this possibly be? I love this car but this shake is driving me insane. Please help!