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National Clean Diesel Campaign (NCDC)

Working Together for Cleaner Air

Cetane Enhancers

Cetane enhancers are compounds added to diesel fuel oil to raise the fuel's measured cetane level. The addition of cetane enhancers to diesel fuel is one recognized retrofit technology used to reduce diesel engine emissions. Emission reduction information is provided below.

Emissions Reduction Performance Information for Cetane Enhancers
Technology Engine
Model/Application
Reductions
PM NOx HC CO
Cetane Enhancers Highway, heavy duty, 4 cycle, non-EGR-equipped n/a 0 - 5 n/a n/a

Notes:

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