INTRODUCTION CD3340B/YB4411
1-4
Published 04/07/2015 Control # 569-00
DIESEL FUEL
The Cummins Diesel Engine operates most efficiently with
No. 2 diesel fuel in temperatures above 0°C (32°F). When
operating in temperatures below 0°C (32°F), use No. 1 diesel
fuel, or a blend of No. 1 and No. 2 diesel fuels, most
commonly known as “Winterized” No. 2 diesel. Use ASTM
No. 2 diesel fuel with a minimum Cetane number of 40. No. 2
diesel fuel gives the best economy and performance under
most operating conditions. Fuels with Cetane numbers
higher than 40 may be needed in high altitudes or extremely
low ambient temperatures to prevent misfires and excessive
smoke.
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