Quote:
Originally Posted by AhadV
No matter how hard I drive the Z it won't ever match the rx8's mileage. That 1.3 liter rotary ate 14 miles per gallon.. and 17mpg highway. Not to mention the Z is way more fun. Still trying to figure out if anyone has tried regular unleaded to get better gas mileage?
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A change in octane won't affect mileage, only performance. You can probably run 89 in the car if available, just don't wring it's neck at every red light.
Quote:
Originally Posted by alcheng
Regular Unleaded will only get you less mpg and dirty engine. Don't try it.
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Negative ghost rider. It won't make the engine any more clean or dirty. It will just be more prone to knock retard which will force the computer to reduce timing and affect horse power.