Recreational Vehicle Lpg Tank Valve/gauge problems of the 2011 Toyota Prius

I noticed around 90,000 miles that my car began consuming oil at any accelerated rate, so I didn't think too much about it. Then I noticed that I my oil gauge was turning on every 1,000-1,200 miles, my car was completely out of oil. I went online to Toyota Prius forums and started doing more research and this is a common problem for 2010-2011 Prius's. Bob smith Toyota, in la crescenta, who sold me the car, ran an oil consumption study and concluded that there is a major issue and they contacted Toyota did not want to acknowledge there is an problem for the sake that this could result in a class action lawsuit based on negligence.