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Old 04-28-2020, 03:11 PM   #8 (permalink)
Ecky
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ND Miata - '15 Mazda MX-5 Special Package
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Variable Valve Timing (VVT) is not ignition timing (spark plug timing). VVT would not indicate an engine's ability to benefit from higher octane, and would not allow changing any variables affected by higher octane.
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