Dodge 2012 Ram - Manual (Page 679)

Component Fluid, Lubricant, or Genuine Part
Spark Plugs – 4.7L Engine Upper Bank — FR8TE2 (Gap 0.039 in [.99 mm]) Lower Bank — FR8T1332
(Gap 0.051 in [1.30 mm])
Spark Plugs – 5.7L Engine LZFR5C–11 (Gap 0.043 in [1.1 mm])
Fuel Selection – 3.7L and 4.7L
Engines 87 Octane
Fuel Selection – 5.7L Engine 87 Octane Acceptable - 89 Octane Recommended
7
MAINTAINING YOUR VEHICLE 677