it\'s cheaper,..but it\'s amazing how a few years back i stated "if gas goes over 2.50 - 3.00 i\'ll stop driving"....regular down here is about 2.50...but prem is about 2.71 which is what i use for the lex...the metro and the expedition gets mid grade which is about 1.64...anything is better than payin\' 3.30 - 3.40 for premium tho..