Here you go guys this may answer some questions about "what" JP8 is. Hope it helps.


Dear Mr. Anderson,

Thank you for contacting ExxonMobil.

We received this information to pass on to you.

The four fuel products mentioned by the customer are governed by different
specifications in the US: Jet A by ASTM D1655; JP8 by MIL-DTL-83133F; #1
diesel and #2 diesel by ASTM D975

Jet A is the commercial version of aviation turbine fuel used in the US.
JP8 is the version of Jet A used in US military applications. JP8 is
essentially the same as Jet A, except JP8 has better low-temperature
operability and JP8 must contain icing inhibitor, corrosion inhibitor,
lubricity, antistatic, and antioxidant additives. Jet A may or may not
contain one or more of these additives. The hydrocarbons in Jet A and JP8
must be derived from refining of conventional sources, such as crude oil.
Recently, approval has been given for up to 50 vol% of these fuels to be
synthetic paraffinic kerosene derived from a Fisher-Tropsch process (as
described in ASTM D7566 and MIL-DTL-83133F).

#1 diesel fuel is somewhat similar to Jet A in composition and distillation
characteristics. However, #1 diesel fuel is available in 3 sulfur grades:
15 wppm, 500 wppm, and 5000 wppm maximum sulfur, respectively. Jet A is
available in only one sulfur grade with a 3000 wppm maximum. Jet A is
allowed to have up to 25 vol% aromatics, while #1 diesel fuel is permitted
to have up to 35 vol% aromatics content. Thus, #1 diesel fuel usually has a
higher content of aromatic compounds compared to Jet A.

#2 diesel fuel has a lower volatility than #1 diesel fuel, and #2 boils
over a wider range. The T90 distillation recovery temperature of #2 diesel
fuel is specified to be as high as 338°C maximum, while for #1 diesel fuel
T90 is permitted to be 288°C maximum. #2 diesel fuel is available in the
same three sulfur grades as #1 diesel fuel and may also contain up to 35
vol% aromatics.

#1 and #2 diesel fuel are permitted to contain up to 5 vol% biodiesel
(mono-alkyl esters of long chain fatty acids derived from vegetable oils or
animal fats). Biodiesel is not permitted in jet fuels.
Thank you for contacting ExxonMobil.

Ian George
Exxon Mobil Corporation

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The following inquiry was sent through:
Brand: EXXON
First Name: Jason
Last Name:
Position Title:
E-mail: tinman875@cableone.net
Company: Conrad & Bischoff
Address:
Country: United States
Phone:
Fax:
Current Customer: Yes
Question:
what is the compostition difference between JP8 JET A #1 diesel and #2
diesel? Thanks Jason