Please tell me why you would use 91 octane if there is 93 octane available? Sure it's fine to use it but the engine was designed and tuned for 93. Shell V-Power is my favorite. I know I'm going to get hell for this.... but car engines last longer and get less carbon buildup when using premium gas from one of the teir one companies. Over in England there were tests with a GTI and Shell and BP, other brands that were tier 2 were tested. We're talking 20hp differences from some. If you are trying to save money by buying cheap gas you shouldn't be driving this car. Better not check the oil either while your at it. This car gets 200hp with 93 octane, not with 91. The crickets go away for most as well. OK, now let me have it......
