Hearhear
Well-Known Member
I’ve got the 392 V8 and this is what the manual says:
6.4L ENGINE
Do not use E-85 flex fuel or ethanol blends greater
than 15% in this engine.
These engines are designed to meet all emissions regulations, provide optimal fuel economy and performance when using high-quality unleaded “Premium” gasoline having a posted octane number of 91 as specified by the (R+M)/2 method. The use of 91 or higher octane “Premium” gasoline is required in these engines.
6.4L ENGINE
Do not use E-85 flex fuel or ethanol blends greater
than 15% in this engine.
These engines are designed to meet all emissions regulations, provide optimal fuel economy and performance when using high-quality unleaded “Premium” gasoline having a posted octane number of 91 as specified by the (R+M)/2 method. The use of 91 or higher octane “Premium” gasoline is required in these engines.
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