Cadillac ATS General Discussion Forum Discussion, Told to use only Premium Gas in 2014 ATS 2.0 turbo in Cadillac ATS Discussion Forums; Leased 2014 ATS 2.0 turbo in late August. The ATS has spent 29 days in service excluding this time, which ... 01-26-1511:14 AM #1. Cadillac Owners Member Automobile(s): 2014 ATS 2.0 turbo.