ULSD + additive lubricity study
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Elder User
Joined: Apr 2005
Posts: 533
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From: Simpsonville, SC
ULSD + additive lubricity study
Anyone heard of this?
http://www.johnfjensen.com/Diesel_fu...itive_test.pdf
Apparently my diesel kleen isn't making much of a difference for lubricity.... It's also alarming to read about ULSD's lack of lubricity (even though I figured it was the case all along).
Thinking about getting some bio to run 2%...
http://www.johnfjensen.com/Diesel_fu...itive_test.pdf
Apparently my diesel kleen isn't making much of a difference for lubricity.... It's also alarming to read about ULSD's lack of lubricity (even though I figured it was the case all along).
Thinking about getting some bio to run 2%...
Lead Driver
Joined: Oct 2004
Posts: 7,413
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From: Columbia, MO
Yup, I've seen that one before. Makes me feel better about the Schaeffer's additive I've been using recently.
I've thought about a bio blend too, but the bio comes with its own set of problems. Mainly, the fact that it can absorb water from the atmosphere, leading to issues of it's own. Problems such as bacteria and fungal growth, corrosion of the fuel system, increased aging, the formation of deposits and sludge that can clog filters and fuel injectors, and oxidation. I used to run a B5 blend until I found out about this. If I decide to run a bio blend again, I will definately be using an additive that will combat these problems.
I've thought about a bio blend too, but the bio comes with its own set of problems. Mainly, the fact that it can absorb water from the atmosphere, leading to issues of it's own. Problems such as bacteria and fungal growth, corrosion of the fuel system, increased aging, the formation of deposits and sludge that can clog filters and fuel injectors, and oxidation. I used to run a B5 blend until I found out about this. If I decide to run a bio blend again, I will definately be using an additive that will combat these problems.
Post Fiend
Joined: Feb 2007
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From: Dallas-Ft. Worth
I think the problems you cite are for much higher blends of BD -- like B100. A 5% BD blend will have a hard time causing all those problems with all that dino, IMHO. I also think those problems have been dealt with nowadays with commercially made BD because of the additives they use.
Lead Driver
Joined: Oct 2004
Posts: 7,413
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From: Columbia, MO
Joe, you may be 100% correct. I still want to do some reasearch on our local bio blend before I switch back to it. Right now, I'm playing it safe and running straight #2.
One thing I have noticed, is the problems I was having a few months ago with my fuel pressure dropping and the pump making strange noises has gone away since I switched away from the bio blend. That makes me think something funny was going on with the bio blend.
One thing I have noticed, is the problems I was having a few months ago with my fuel pressure dropping and the pump making strange noises has gone away since I switched away from the bio blend. That makes me think something funny was going on with the bio blend.
Elder User
Joined: Mar 2006
Posts: 751
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From: Greeneville,TN
I would also like to point out the fact that the study was a completely blind study. Opti-lube was able to submitt their sample unlike all the other companies. Just look at under the paragraph titled blind study. I would like have seen the outcome other wise. Also Schaeffer's sample was the 1st one on the list with a cold flow improver, which cuts the lubricity of the additive. I would have been nice to see how schaeffer would have done if they would have took the sample from just the Diesel Treat and not the Diesel Treat Winter Premium. It also make me feel good about Schaeffer.
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Fleet Owner
Joined: Jan 2004
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From: Brentwood,CA
I noticed the CAT and John Deere dealer now sell a sulfer substitute. It costs 9.99 for a quart that treats 250 gallons. The bottle claims to raise a gallon of diesel fuel to 550 ppm if used as directed.
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Lead Driver
Joined: Oct 2004
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From: Columbia, MO
Originally Posted by ford390gashog
I noticed the CAT and John Deere dealer now sell a sulfer substitute. It costs 9.99 for a quart that treats 250 gallons. The bottle claims to raise a gallon of diesel fuel to 550 ppm if used as directed.
Elder User
Joined: Aug 2006
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From: Mountaintop, PA
Originally Posted by jtharvey
The whole problem with ULSD is not the lower sulfer content, but the decrease in lubricity that comes from the process of removing the sulfur. ?
. Little do they know what is happening to their injectors, fuelpump and so on.
Senior User
Joined: Oct 2005
Posts: 268
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From: Garden Grove, Ca
I originally used DieselKleen (learned that on this forum) and then decided to try the Stanadyne Lubricity formula. After a couple of tanks I got the impression that the engine ran smoother and quieter. Maybe it was my imagination, and then again maybe not.
Post Fiend
Joined: Feb 2007
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From: Dallas-Ft. Worth
Originally Posted by pullinair
jtharvey, Isnt that the same thing? BTW, you should hear the volkswagn tdi forums. THose gus think that the ULSD is better for thier diesel engines. They claim it keeps the EGR from clogging up. Right . Little do they know what is happening to their injectors, fuelpump and so on.
. Little do they know what is happening to their injectors, fuelpump and so on.My truck seems to "like" BD (it's a soy BD though, not corn), so I'll keep running it when I can. The closest pump is a bit out of the way, so I can't always get it. If it were easier to get and offered with a better cost break, I'd run it all the time.
Elder User
Joined: Aug 2006
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From: Mountaintop, PA
Originally Posted by Izzy351
It probably does help with that. .
I agree, but those who have the clogging EGR issues have automatics with set shift points. They get driven like a golf cart (w/out a drunk behind the wheel)). I guess i have beeen lucky with a stick, meaning I can clean do a 4th gear clean out on the wifes jetta every now and then. Believe it or not, I can still get LSD here in PA at the local Turkey Hill. I am dreading the day they switch over.
Last edited by pullinair; Dec 7, 2007 at 11:53 AM.
Freshman User
Joined: Feb 2005
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From: Montana
Guys, long time no post. I do monitor this forum as I can. I ad Mystery oil to my fuel, '01 F250 7.3L diesel, every other tankful. It states on the bottle that Mystery oil is an additive to ensure injector nozzle cleanliness and will stabilize fuel over the long run and does not qualify for ULSD content. I ad 4 oz. per 10 gallons of fuel. Is this enuf lubrication to make up for the loss of such in the USLD?
Senior User
Joined: Jan 2004
Posts: 247
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From: Helmville MT
Originally Posted by MTGunner
Guys, long time no post. I do monitor this forum as I can. I ad Mystery oil to my fuel, '01 F250 7.3L diesel, every other tankful. It states on the bottle that Mystery oil is an additive to ensure injector nozzle cleanliness and will stabilize fuel over the long run and does not qualify for ULSD content. I ad 4 oz. per 10 gallons of fuel. Is this enuf lubrication to make up for the loss of such in the USLD?