I asked my A&P to change the oil and filter in my Arrow. Specified in writing that I wanted AeroShell W100 Plus. He acknowledged the request. I discovered after the oil change that they used AeroShell W80. I live in a hot climate, temps in the 90's are common in August and September. So... would you live with it? Or ask them to drain and refill with the proper oil? First time that I've run in to this. I'd appreciate your thoughts.