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2021 Mazda6 Turbo Carbon Edition Fuel Efficiency

1497 Views 10 Replies 5 Participants Last post by  Les2021LH
I have the 2021 Mazda6 Turbo Carbon Edition. Has anyone used anything other than hi-test fuel and if so, did you notice a difference in performance or fuel efficiency? Thanks


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FYI, according to Mazda, the turbo makes 227 hp and 310 lb-ft on regular gas, and 250 hp and 320 lb-ft on premium. Previous to '21, there was only a hp difference, but apparently Mazda tweaked the computers for the 6's Swan Song.

I will say that with my 2018 Reserve, I do notice a difference (although slight, it's there) using premium, so I stuck with it, price difference be damned...

And no, there was really no difference in fuel economy. The bigger difference you'll see is if you stay out of the turbo, but I've never had any success with that...
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