94-98 12 Valve Recommended Fuel
Diesel no 2 minimum cetane rating
40 for temp above 32 degrees F
45 for temp below 32 degrees F
45 with prolonged heavy loads (towing, max GVWR, etc)
Acceptable emergency alternative fuels for 1994 & later 12 Valve trucks:
#1 and #2 Diesel
1K and 2K Kerosene
Jet -A, Jet A-1, JP-5, JP-8
NOT Acceptable
Jet-B, JP-4, Cite