> Mordy to answer your last question, I believe it's because we do not
> have low sulfur Diesel, much unlike Europe
Actually it is available in the US, and mandated in California. The EU just
lowered their standards to 50 ppm in 2005, the CA standard is 15 ppm. BP/Arco
is supposedly selling 30 ppm in the 49 states, although I've not looked myself.
Valero's is even lower
But much like the concern over unleaded gas, there has been a lot of hoopla
about the dangers of running low-sulfur diesel in engines not designed for it.
The sulfur compounds do add lubricity, which tends to be important to things
like mechanical injection pumps.
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