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Low Cetane #2 diesel

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Old Apr 19, 2008 | 02:58 PM
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Low Cetane #2 diesel

I recently attended a seminar by a guy who works for a Big Oil Company. He said that the diesel cetane rating of the current #2 diesel was lower than we know. He said that the Fed. Gov't lowered the cetane standard after a hurricane damaged/destroyed some of the refineries, & then is lowered still more by the ULSD diesel. According to him everyone driving ANY diesel vehicle should be using a cetane booster with a lubricative additive. Anyone else hear anything like this?
 
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Old Apr 19, 2008 | 04:03 PM
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and i bet he sells cetane booster too, huh??
 
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Old Apr 19, 2008 | 07:04 PM
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I read that ULSD was suppose to have slightly higher cetane but lower heating value.
 
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Old Apr 20, 2008 | 10:32 AM
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Originally Posted by sailson
I recently attended a seminar by a guy who works for a Big Oil Company. He said that the diesel cetane rating of the current #2 diesel was lower than we know. He said that the Fed. Gov't lowered the cetane standard after a hurricane damaged/destroyed some of the refineries, & then is lowered still more by the ULSD diesel. According to him everyone driving ANY diesel vehicle should be using a cetane booster with a lubricative additive. Anyone else hear anything like this?
In the USA, all diesel fuel must meet the specifications set forth by the American Society for Testing and Materials (ASTM)...the Feds have nothing to do with setting standards for fuel. Diesel fuels are covered in documents ASTM D-975 and CGSB 3.6-M90 and 3.517-93. Diesel fuels come out of refineries with a variation in cetane index ratings of 40-46 (depending on base stock). This "guy who works for a Big Oil Company" doesn't even know who sets the standards for fuels in this country ...I'd be suspect of his knowledge about the need for cetane boosting and lubricity. I personally run 2% biodiesel (ASTM wear studies have proved that biodiesel at 2% or greater yields the highest level of lubricity) because of the added lubricity (and quieter running) ...but add no cetane boosters and between two trucks I burn about 175 gallons per week.
 
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