Years ago I compared between 89 and 91 on my 94 Altima, 96 Maxima, 2000 RX300 and 2002 QX4. Not with detailed measurement, just how many miles per fill, I can't tell any difference. Idle vibration at stop, acceleration, etc. When it's time to refill, I randomly decide at the last moment that I want 91 for the heck of it, or 89.
About 80% times I use 89.
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Matt4949
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Premium vs. Regular Fuel: THE ANSWER
Tue Mar 15, 2011 2:12 pm
Premium vs. Regular Fuel: THE ANSWER
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