Ram Trucks 2012 3500 - Owner Manual - Manual (Page 535)

CAUTION!
Only vehicles with the E-85 fuel filler door label can
operate on E-85.
Ethanol Fuel (E-85)
E-85 is a mixture of approximately 85% fuel ethanol and
15% unleaded gasoline.
E-85 Fuel Cap E-85 Badge
5
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