Won't start, maybe it's all shook up

Water,(from condensation), in unused vehicles that sit for a long time,and then are started,then are moved mixing up fuel and water in the tank can then become a non starter. That's because the water is on top of the fuel until you drive it and it gets mixed and water then upon restart attempts is drawn into the fuel lines and won't fire up. That's why using water dissolving and algae preventer is necessary to allow fuel to fire at the cylinder upon start. Otherwise the fuel gets into the cylinder, upon trying to start, and floods into the oil pan, by gravity and pressure, contaminating the oil and then the entire engine. So add the proper amount of what your engine design suggest to keep the mix up from happening so you don't get all shook up.