New to diesel

CosmicDP said:
What, so I obviously don't get it because the product comes from the UK? I live in Canada, it is no problem ordering merchandise from the UK so I can and do get it and it works well.
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No you don't get it! It is very obvious that you don't get it! If you got it you would have posted differently! I know all this because you told me so!
 
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If I told you, you might get it but I doubt it! You would most likely argue with me therefor I speak in riddles!

You should practice oraling the coal sometime...you might get it!
 
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CosmicDP said:
I would be more impressed if you spoke in rhymes.
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Dude you need to greatly expand your general knowledge of diesel before you go giving technical advice to people. For starters find out why diesel does not contain octane and then you understand why people like myself will never buy, use or promote a product that makes such claims.
 
LReiff said:
Dude you need to greatly expand your general knowledge of diesel before you go giving technical advice to people. For starters find out why diesel does not contain octane and then you understand why people like myself will never buy, use or promote a product that makes such claims.
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So now you're trying to tell me diesel fuel doesn't contain octane? :hehe:
 
According to this source when you add octane you reduce engine knock. [ame="http://en.wikipedia.org/wiki/Octane"]Octane - Wikipedia, the free encyclopedia[/ame]
 
Do your homework guys! Diesel may contain low amounts of octane but that does not mean it should be increased as certain products claim!
 
To help you fellas out and to get Lee's blood pressure back down why don't you research the word "cetane". I think that could help.
Good luck.
 
Yes - I always get a good additive that puts plenty of Cetane back in. Thanks, Al Gore, for removing it all and making it more expensive... Douche. LOL
 
"Cetane number or CN is a measurement of the combustion quality of diesel fuel during compression ignition. It is a significant expression of the quality of a diesel fuel. A number of other measurements determine overall diesel fuel quality - these other measures of diesel fuel quality include density, lubricity, cold-flow properties, and sulfur content."
 
LReiff said:
Do your homework guys! Diesel may contain low amounts of octane but that does not mean it should be increased as certain products claim!
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You are correct that diesel contains a small fraction of paraffin series aliphatic hydrocarbons with n<9, including n-octane although the majority of the aliphatics have between 10 and 19 carbon atoms in the chain. You are also correct that one would not want to significantly increase the number of lighter hydrocarbons such as octane because that would change the bulk chemical properties of the mixture and adversely affect its performance as a fuel in diesel engines. That doesn't mean a small increase in octane content would not be beneficial for improving cold starting.

Consider the auto ignition temperatures, in other words the temperature at which combustion will occur in the absence of a spark. For number 2 diesel the auto ignition temperature is in the range of 254-285 degrees Celsius whereas the auto ignition temperature for n-octane is 220 degrees Celsius. It's interesting to note that this is lower than that of comparable light aliphatics except for heptane which is marginally lower.

This means the octane will auto ignite at a lower temperature than the majority component hydrocarbons in diesel. Once a non-negligible component of the mixture ignites, the resulting flame front will serve as a catalyst for the ignition of the remaining hydrocarbons rendering their higher auto ignition temperature irrelevant. The reason diesels are hard to start in the cold is because they rely on the auto ignition of the fuel. In principle, by slightly increasing the octane content of the diesel fuel, the engine would cold start easier because you would only have to auto ignite the octane and this exothermic reaction would in turn ignite the rest of the fuel. This is the same principle, although not as effective, as using ether to cold start an engine since diethyl ether auto ignites at 160 degrees Celsius.
 
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