I bought a new Raptor about a month ago. The manual says it uses regular fuel. Do any of you know if premium fuel will increase its horsepower? (Not that it needs more) I read that premium fuel in the 2011 Mustang GT increases the HP by about ten. Just curious.
Hi-The previous statement is true about the regular fuel for your Raptor, UNLESS it has the 6.2 engine . Then , with regular fuel the HP= 401, and with premium fuel HP=411 / This will be self adjusted by the factory computer once the knock sensors see the increased octane . Or, you can get a tuner for either the 5.4 or the 6.2 to further increase performance and trans shift firmness.
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