cetane number

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cetane number

n.
A performance rating for diesel fuels, with a higher number indicating greater fuel efficiency. The number corresponds to the percentage of cetane in a cetane-heptamethylnonane mixture, or (and originally) in a cetane-methylnaphthalene mixture, with the same ignition performance as the fuel being rated. Also called cetane rating.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

cetane number

n
(Chemistry) a measure of the quality of a diesel fuel expressed as the percentage of cetane in a mixture of cetane and 1-methylnapthalene of the same quality as the given fuel. Also called: cetane rating Compare octane number
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ce′tane num`ber


n.
a measure of the ignition quality of diesel fuel.
[1930–35]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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Cetane number, Cetane rating or CN is an indicator of the combustion speed of diesel fuel and compression needed for ignition.
Independent lab certified to reduce Diesel Particulate Matter (DPM) by 20% and overall emissions by 21% and has been shown to deliver an average Cetane rating over 52 when added to regular diesel fuel at fill up, Dynamo[TM] Diesel Cetane Booster also improves engine performance, power, and increases miles per gallon along with improving cold flow, increasing lubricity and cleaning fuel injectors.
The company said that its 99.8% pure distilled biodiesel has superior performance over the regular biodiesel, including a high cetane rating of 66-68 compared to the regular biodiesel cetane rating of about 51.
As a diesel additive, butanol has a comparatively high cetane rating and improves flow in cold weather.
low-sulfur diesel has a cetane rating of between 38 and 45, while Europe runs up to 58--the higher level of cetane the better the fuel burn and lubricity.
Monster Diesel effectively boosts the cetane rating of diesel fuel to give operators a premium grade diesel fuel which is more cost effective and better for their engine."
Ultimate diesel has a guaranteed cetane rating of 55, compared with regular diesel at 51, and BP claims that it can reduce the noise and smoke in a diesel vehicle by up to 30 percent.