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I understand the issue. When Mazda performs its EPA mileage testing it will either use premium, and that is what the car's EPA-estimated fuel economy numbers and cost per year for fuel will based on, or it will use regular. I understand that many vehicles that recommend premium may use regular unleaded without damage with "slightly reduced performance." If Mazda feels that its new vehicle can use regular and achieve its best fuel economy it would be crazy not to use it in the EPA testing it will conduct. (Mfgs. do the testing, not the EPA, except in some cars EPA audits). I honestly don't care one whit about peak horsepower ratings in a three-row family crossover. Nor do most shoppers. This is not a performance vehicle, it is a family vehicle. Peak horsepower on various fuels is a separate, but related issue. You may note that the article does not mention horsepower.