Octane Rating - 2014 Mazda CX-5 Long-Term Road Test
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2014 Mazda CX-5 Grand Touring AWD Long-Term Road Test

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2014 Mazda CX-5 Grand Touring AWD: Octane Rating

March 22, 2013

2014 Mazda CX-5 Grand Touring AWD

The topic of proper octane for our 2014 Mazda CX-5 Grand Touring AWD came up recently. Since I had the car, I looked it up in the owner's manual. Of course, I found the familiar refrain:

[87(R+M/2) method] or above (91 RON or above)

What does it mean? It means you can put 87 or above in the tank. We're seeing this sort of "don't go below 87, but you can go above" language more and more. In fact, we even proved (here) that even if it isn't required, that running premium fuel can save you money, under the right circumstances and in the right car. "Your results may vary."

So, has anybody out there done this experiment with their CX-5? Did you find that the extra cost per gallon was offset because your CX-5 ran so much more efficiently and earned more miles per gallon?

Chris Walton, Chief Road Test Editor @ 3,504 miles

  • Full Review
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  • Long-Term (289)

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