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Old 07-20-2014, 08:37 PM   #55 (permalink)
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Join Date: Dec 2011
Location: New Zealand
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ND Miata - '15 Mazda MX-5 Special Package
90 day: 39.99 mpg (US)
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Switched over to 87 octane, and it seems I'm able to get more bang in lean burn, generally, though there's still some mystery about it. Sometimes LB is able to maintain a higher speed at 75-80MPG, and sometimes it actually maintains a lower speed than just letting off the throttle without engaging LB.

Combination of 87, maybe a bit of finesse with the pedal and my upper grille block and I was able to maintain ~72MPG @ 70MPH, with the A/C running, for most of my trip back from South Florida earlier today. So far this tank is 60% used up and averaging 72. Looks like I'm going to have 6 consecutive improving tanks.
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