Talk:Cetane number

message: Anybody know what the story is on finding out the cetane number of fuel at the pump?  I see octane rating at every gasoline pump these days, but I've never seen a cetane rating.  Are they required to display octane, but not cetane?  Or is there just no demand for it?
:I'm not sure, but maybe they believe owners of diesel-fueled cars don't consider the cetane number (or don't care/know about) while purchasing their fuel. Most people consider diesel just for its fuel economy.
::It may also change with seasonal changes to composition. Rmhermen 00:50, 4 March 2006 (UTC)
replies: text: A diesel mechanic who has never heard of cetane numbers? Scary... Specific gravity is a good indicator of the fuel's density, but not of its combustion qualities. I'm not sure why anyone would be measuring the fuel's specific gravity. Perhaps they are trying to determine how much water is entrained in the fuel (water has a higher specific gravity than diesel fuel). The specific gravity of the fuel itself is set by the refinery according to strict specifications. Shreditor (talk) 08:35, 17 October 2008 (UTC)

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message: ref #5 to http://www.dorfketal.com/additivesphlox.htm is broken  — Preceding unsigned comment added by Alongdwiki (talk • contribs) 19:00, 23 March 2016 (UTC)
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message: The two subsections headlined "Ignition Quality Tester (IQT)" and "Fuel ignition tester", respectively, deal with procedures that are fairly similar, and the texts of the two subsections are nearly identical. I therefore suggest that the two subsections be merged into one, possibly with the headline "Alternative measurement proedures" or "Non-engine measurement procedures".
Nikolaj1905 (talk) 10:34, 8 May 2018 (UTC)
thread_title:  IQT and FIT - sections merger proposal