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jdog's avatar
jdog
Explorer
Mar 04, 2014

DIESEL CETANE RATINGS

I have read that Cetane ratings for diesel fuel should be at 45 or higher. Most available diesel fuels are at 40 Cetane. Miniumum California Cetane diesel fuels are required to be at least 50.What do you guys know about Diesesl Cetane ratings? Does Cetane booster need to be add to the fuel?
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  • John___Angela's avatar
    John___Angela
    Explorer
    Mar 04, 2014
    jdog wrote:
    I have read that Cetane ratings for diesel fuel should be at 45 or higher. Most available diesel fuels are at 40 Cetane. Miniumum California Cetane diesel fuels are required to be at least 50.What do you guys know about Diesesl Cetane ratings? Does Cetane booster need to be add to the fuel?


    I don't know much about diesel but I know our european diesels run smoother and quieter with a cetane additive. For whatever reason the same thing happens with biodiesel.
  • downtheroad's avatar
    downtheroad
    Explorer
    Mar 04, 2014
    ScottG wrote:
    I have never given cetane ratings a second thought.

    Me either. I pull up, pump, pay, and get on down the road.
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Mar 04, 2014
    I think it has been mandated by EPA since 1994 that 40 was the minimum.

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