When making my decision on purchasing my 2017 Chevy Impala, I told them that service of the car is very important to me. I had a bad experience with my last dealer. Didn't want to go through that again. Months after purchase I began experiencing some major problems on acceleration. I live in Oshkosh, so I took the car to my service center. They informed me it was the fuel pump and it was most likely the result of running E85 in a Flex Fuel car. I was told nothing about what fuel is best in a Flex Fuel car. Klein replaced the fuel pump and very politely said it was my fault, for running E85 fuel. Communication while they had my car, was awful, different answers on when it would be done, they were so busy. Subsequently, I do not run E85 fuel. Upon discovery of an oil leak weeks later, I was told by my mechanic to take it back to Klein, in case it was another warranty problem. Klein's service manager very politely said the oil leak was from being overdue for an oil change and I should get one done. He did not offer to do one. Now, if they are so AWESOME!, wouldn't you think they would just do one? I'm not taking my car back to them for anything. My service center in Oshkosh knows me and takes care of my car(s).