For diesel engines it depends on the type of fuel, for distillate fuels the cetane numbers are used.
CII was designed to give out numbers in the same order as the cetane index for distillate fuels.
Can be also used for gasolines and other distillate fuels.
Inventories of distillate fuels, including heating oil, rose by 2.4 million barrels last week to 131.6 million barrels, the American Petroleum Institute said.
East Coast stockpiles of heating oil and other distillate fuels are now 37.7 million barrels, 30 percent below last year, according to the American Petroleum Institute.
The original 9N engine was a four cylinder engine and was designed to be powered by distillate fuels.
Stadis 425 is a similar compound, for use in distillate fuels.
Boilers were converted to operate on distillate fuel.
ASTM D6751-08 details standards and specifications for biodiesels blended with middle distillate fuels.
On Thursday, the Energy Department reported that stocks of heating oil and other distillate fuels fell 900,000 barrels last week to 111.4 million barrels.
