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Old 09-24-2015, 06:01 PM   #32 (permalink)
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Quote:
Originally Posted by deejaaa View Post
sulfur lubricates as lead did. correct me if i'm wrong.
Here is my understanding of the ULSD reformulation. The sulfur is not a lubricant, however the process of removing the sulfur also reduces the fuel lubricity. In addition to the ridiculously low cetane of the new ULSD fuel, and what I perceive to be less energy, I never run straight D2. Even during winter I run at least B20. I get better mileage on biodiesel than pump diesel; this I have tested back-back directly, it's less than 5% difference, but that's why I think there may be less energy in the ULSD -- might be cetane differences too, but since we are in the Unicorn Corral we are allowed to speculate rampantly.
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