There are two grades of diesel fuel in Chile:
- Grade A1—the only on-road diesel fuel legally available to the public in the Santiago Metropolitan Region.
- Grade B—the diesel fuel intended for the rest of the country.
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Since July 2004, grade A1 diesel [D.S. No. 58/04] has had a maximum sulfur limit of 50 ppm and lubricity requirement [D.S. No. 222/04].
Starting in 2007, Grade B diesel fuel [D.S. No. 133/04] sulfur is limited to 350 ppm. In 2008, the cetane number of Grade B increases to 50 to match Grade A1 and in 2010, a sulfur limit of 50 ppm and an HFRR lubricity requirement for Grade B take effect [D.S. No. 319/06].
A national renewable fuels mandate has been proposed that would see 5% ethanol blended into gasoline by 2010 and 5% biodiesel into diesel fuel by 2013. The proposed biodiesel standard is very similar to EN 14214 including a minimum oxidation stability of 6 hours and a maximum iodine value of 120.