This is a raptor forum, who buys a raptor for fuel economy anyway lol. Tell you what, pump 87 on the raptor for a week then take it down to the strip on a Friday and make a pass. Following week pump 91 and make a pass at the end of the week. Come back and tell me "It's *********" lol
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The system works harder pulling, adding timing on lower octane. Yeah it will run it no issue but it's boosted. Run better octane and get better response and fuel mileage. If you can stay off the throttle.
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