new ULSD and its effect on our rotary injection pumps

[85-m1028]

I just thought I'd ask around about this new ulsd and how it impacts the duty cycle of our DB- pumps which are lubricated with diesel fuel?? Any suggesions on the best fuel additives and the most cost efficient etc. etc.???

[Robyn]

I have used a snort of tranny fluid for years.
I had this conversation with a my friend at the diesel pump shop up in Portland just the other day. He of course being in the business recommends the stanadyne fuel conditioner. I asked him about using tranny fluid, he smiled and agreed that it is fine to use even on DS4 electronics.
Im sure the EPA boys are screaming but thats tough. We have to survive here and keep our rolling stock going.
Lets see what shakes out as this ULSD is phased into the system.
I am a heavy trucker and am decidedly concerned about this tooin my big Cats.
It will become more evident as to what we should do as time goes by.
Just roll with the punches for now me thinks.
Robyn

[85-m1028]

I found this http://www.chevron.com/products/prodserv/fuels/diesel/ulsd.shtml ... it does say there is an additive but doesn't specify what??

[More Power]

In 1991, the US Army, Belvoir RD&E Center in Virginia sent a technical directive to all appropriate units regarding "Effects of Oil and Fluid Additions on JP-8/Jet A-1 Fuel Properties".

It said:



"Since the onset of using aviation kerosene turbine fuels as alternative fuels for diesel/compression-ignition engines, there have been reoccurring reports/claims that certain amounts of either engine oils, transmission fluids, hydraulic fluids, etc. need to be used as a means to improve the "lubricity qualities" of aviation kerosene turbine fuel (i.e. JP-8, JP-5, or JET A/A-1) and reduce potential wear problems. During Operation Desert Shield, this perceived need to add lubricant/fluid products intensified regardless of numberous messages that were sent recommending against such action.

Because of the lack of an undersanding as to the negative impact any oil or fluid addition can have on the overall performance qualities of the resultant blend, a series of laboratory evaluations was conducted to clearly illustrate the potential harm that can accrue with unauthorized blending of any oil/fluid product into JP-8/Jet A-1 fuel."


I suspect some of the concern was about engine performance when using a blended fuel - which is important on the battlefield. The message did not go into detail about what "potential harm" there might be or whether a blend affected fuel lubricity.

Jim

[Robyn]

The military pumps are supposed to be set up to handle all the aformentioned fuels. The civilian version of the pump is designed for #2 diesel.
I believe the inner working of the pumps for Mil spec vehicles are different.
I bought a pump off a Humvee 6.2 to use on my J engine that is going in my Hummer Kit car. The pump shop said it was set up the same as the J engine but the parts were somewhat different.
I have used kerosene a few times to get home as well as #1 fuel oil.
The addition of a pint of tranny fluid to improve lubricity as well as keep the pump clean. ( Due to it detergent properties) is the whole point.
I dump a gallon of tranny fluid in my 500 cats tanks every few months to keep the kitty purrrrrrrrrring. Been doing it now for 500K miles and she runs sweet and still on the factory injectors from 1995.
Once a number of years ago I was out in the sticks in some PO DUNK town and they had no diesel. we mixed 5 gallons of gasoline and 2 gallons of 10-40 motor oil and the little 6.2 ran fine. smoked a lot but it ran many thousands of miles after that issue without any trouble.
Had I known what was up I would have got a can full of fry oil from the local greasy spoon. :0)

[gmctd]

I 'spect the military is also concerned with the blending of the blended fuel(s) - the 'if 1oz is good, a hunnerd oz should be really good!' syndrome.

I cannot imagine why anyone concerned with adding 'lubricity' improver to their Diesel tank would not consider 2-stroke motor oil, rather than all the other non-combustive fluids and lubes.

It has beneficial friction modifiers - good for moving parts - and is formulated to burn in the combustion chamber without leaving residue.

And, it's a lot cheaper than DexronIII - try it, you'll like it............

[kaylabryn]

Out of curiosity how much 2 stroke oil do you usually use? I might have to give it a try.

[MTTwister]

that's what I've premixed for my refuelling bottles ( formerly 12 oz containers of injector cleaner or Heet for the car).

[gmctd]

I use 2oz per 15gal fillup on a 20gal tank with the Stanadyne Inj Pumps, along with 4-6oz power Diesel service cetane booster - check with Dr Lee for specific specifics.

Cetane booster only in the Bosch, as they're lubricated by pressurized engine oil - tho't I'd throw that in so noone gets into any scuffles with the Dodge crowd..........:cool: