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Old 03-05-2014, 06:22 PM
DRam14 DRam14 is offline
Dodge Ram Forum Member
Join Date: Feb 2014
Location: California
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Vehicle: 2014 Dodge Ram 1500 4x4
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I run 87. If your vehicle is designed for 87 octane and you use 89 or 91, then all you are doing is lowering your power and gas mileage. Now, if you have a tune designed for higher octane, or are getting ping, etc..then you would want to increase the octane.
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