Fuel Question
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From: Sin City
Fuel Question
Does anyone know what would happen if you put the military diesel fuel, JP 5 or 8 or whatever its called, what it would do. is it any better then #2 fuel? or what the difference is?
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From: Colorado
IT SHOULD ALSO BE NOTED THAT DIESEL ENGINE FUEL FILTER PLUGGING
PROBLEMS MAY OCCUR AT INSTALLATIONS UNDERGOING INITIAL CONVERSION
FROM DIESEL TO JP8. KEROSENE BASED JP8 HAS A SOLVENT CLEANSING
ACTION ON ENGINE FUEL SYSTEMS FORMERLY IN DIESEL SERVICE. THIS
SITUATION SHOULD IMPROVE AFTER PURGING WITH SUBSEQUENT LOADS OF JP8
AND ENGINE FUEL FILTER REPLACEMENT AS NECESSARY.
From an army document on running JP8 in Diesel engines
PROBLEMS MAY OCCUR AT INSTALLATIONS UNDERGOING INITIAL CONVERSION
FROM DIESEL TO JP8. KEROSENE BASED JP8 HAS A SOLVENT CLEANSING
ACTION ON ENGINE FUEL SYSTEMS FORMERLY IN DIESEL SERVICE. THIS
SITUATION SHOULD IMPROVE AFTER PURGING WITH SUBSEQUENT LOADS OF JP8
AND ENGINE FUEL FILTER REPLACEMENT AS NECESSARY.
From an army document on running JP8 in Diesel engines
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From: Lynden, WA.
Without more research, I would think that running Jp5/8 aviation jet fuels, would be worse than running #1 Diesel for extended periods, for lack of lubricity. JP8 actually mixes with water.
https://www.ford-trucks.com/forums/s...d.php?t=317027
http://www.chevron.com/prodserv/fuel.../L2_2_5_fs.htm
http://www.mobil.com/USA-English/GFM..._Fuels_FAQ.asp
https://www.ford-trucks.com/forums/s...d.php?t=317027
http://www.chevron.com/prodserv/fuel.../L2_2_5_fs.htm
http://www.mobil.com/USA-English/GFM..._Fuels_FAQ.asp
Last edited by jackofalltrades; Dec 20, 2004 at 02:51 PM.
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Originally Posted by jackofalltrades
Without more research, I would think that running Jp5/8 aviation jet fuels, would be worse than running home heating oil for extended periods, for lack of lubricity. JP8 actually mixes with water.
Duncan
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From: Sin City
ok but arent all the HUMVEE, 5,7 ton etc... vehicles diesel powered and they all use the JP whatever fuel. is it just a more refined diesel fuel or is it a whole different fuel altogether?
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From: Colorado
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From: Lynden, WA.
The reason the I've heard of is that the military is standardizing within the ranks. The Navy, Airforce and Army use different fuel grades. Getting them all on one grade enhances military operations capabilities. I don't know that they're interested in making things last... Every engine in the military is on a strict maintenance plan. Before something is worn out, it's replaced with something more high tech. It's the Bic Lighter plan. Only salty dogs and war veterans use a refillable Zippo.
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From: Colorado
It is all logistics. Move/store one fuel to run everything from tent heaters to trucks to aircraft. It is a NATO initiative also, so all nations can refuel no matter where they are in the battle space.
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From: 3rd Rock
Bob is spot on..they are tying this with the JSF..... The idea that we will need to be capable of participating in many campaigns… on numerous continents, is extremely taxing, it is the same principle as using NATO ammunition….more commonality means less supply line problems, one reason we went to 9mm side arms.
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I worked on F-18's for five years in the Marine Corps and we used JP-5 in them. When we went to Air Force bases, they had JP-8 only and it caused more internal wear in the engines and actually made the EGT's higher on start up and high power. We had to mix it up now and then and fly the jets back to a Navy/ Marine Corps base for JP-5 to keep the lubricity up. Also, we kept the excess fuel that we drained out for maintenance in tanks and used it to fill up the generators and hydraulic power units that had 4-53 and 6-71 detroit diesel engines that had no modifications and they ran great all the time.Granted they are 2 cycle diesels, so that may make a difference. This fuel was not dyed by the way and could be found in some diesel trucks on base (I did not have one then).
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From: Great State of Texas
Does anyone know what would happen if you put the military diesel fuel, JP 5 or 8 or whatever its called, what it would do. is it any better then #2 fuel? or what the difference is?
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From: Spring Valley Ca
I'm stationed aboard a Diesel propelled ship and we carry JP-5, DFM (Diesel Fuel Marine) F-76 or equivilant to #2 Diesel. JP-5 is primarily used for Helo's and F-76 is used for Main propulsion and Diesel Generators. The rule is we can downgrade JP-5 to use for diesels but we cannot upgrade DFM. Marine units sometimes carry JP-4 which is not allowed aboard ship unless special provisions are made due to the flash Point being lower than the Minimum of 140 Deg. F. We run JP-5 in small craft all of the time with no negative results. Studies have been done to prove the lubricating issues are not a problem.
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