JphcoldstreamBC

Hello, new here. Came here regarding this topic. I am on my 4th fuel level sending unit on a 2018 Sierra 1500. Truck only has 28000km on it. Warranty is up in November and when I asked the dealer what they were going to do for me if and when it happens again and the service manager suggested I change the fuel I’m using . Has anyone found a fix for this or a reason why this would keep failing? I love my truck but I’m considering selling it if I have to replace this unit every year at my expense.