I have been using Arco 91 octane in my '09 since new. I'll bet it's had less than a dozen tanks of gas from other stations through it. No problems encountered at all. I do add 8 oz of MMO to the tank about every 1000 miles, that seems to help with the sticky fuel level sensor, and I run a bottle of Techron through it before each oil change. Arco is top tier, use with confidence.
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