Originally Posted by TonyMontana
I've been told by numerous people to use the gas your vehicle calls for. My last car an Acura called for premium so that's what she got. My 2014 Hemi calls for regular. The computer will adjust itself for the fuel so there is no performance benefit. You just want quality clean fuel.
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You have a 2014 Hemi that specifies regular?
I guess the wording could be interpreted as such.... although the upper end of the range is usually "midgrade" which the OM is silent about.
5.7L Engine — If Equipped
This engine is designed to meet all emissions regulations and provide satisfactory fuel economy and performance when using high-quality unleaded gasoline having an octane range of 87 to 89. The manufacturer recommends the use of 89 octane for optimum performance. The use of premium gasoline is not recommended, as it
will not provide any benefit over regular gasoline inthese engines.