Diesel fuel additives??

[gjwarneke]

We have a 2000 7.3 diesel truck and would like to know what is the best fuel lubricant additive to use, we have been using "Lubribor" a Hammond product but are unable to find anymore and would like to hear from you experts on the road of what is the best on the market?

Thank you,
Glenn

[TxTiger]

I use Opti-lube in my 2000 7.3. Very inexpensive and provides great lubrication. They've just come out with a cetane booster version.

[Perrysburg_Dodg]

RAS43 wrote:

Perrysburg Dodgeboy wrote:

hone eagle wrote:
Sulfer is not ,never has been a lubricant .
just sayin

:h that's funny because that's not what I have read. Google ULSD and older diesels. There are studies showing injectors and pump failures have more tripled since ULSD became the standard. Just like unleaded burned exhaust valves and seats in cars designed for leaded fuel. Sulfer does add lubricity to diesel fuel, if it didn't why has pump and injector wear increased in older diesels?
Don

The process to remove the sulfur from diesel fuel also removed some of it's lubricating properties. Hone eagle is correct-sulfur is not a lubricant. As for injector/pump failures, the fleet I worked for did not see any of these issues on our older equipment when ULSD fuel was introduced. And we had a large variety of trucks, off-road equipment and locomotives. Not saying it didn't happen but I don't believe it was as big an issue as the internet reported. Could have been many different issues.
As for the unleaded gas thing, well that is a whole different issue. A lot of myth there too.

OK, yes sulfur is not a lubricant and yes I do know this. But the LSD (500PPM sulfur content) and ULSD (15PPM sulfer content) are not good for older diesels When they remove the sulfur they are also removing a good portion of the lubricating effect of the fuel. Cummins has said LSD can be used in the older diesels without any harm. They will not say the same for the ULSD.

I talked with them this morning and was told that "Cummins does not recommend the use of additives in 2007 and newer engines. She also said and she stressed this, "we do not discourage the use of an additive that increases the lubrication of ULSD in our older engines".

So take that for it's worth and it should be noted that Cummins sells an additive under the Fleetguard line. So maybe they are just trying to boost their sales right? I can tell you that I have used 2 cycle oil along with other additives in my truck and it runs smother, quieter and makes better mileage with additives then without. At the cost of about $7000 to have my engine rebuilt without labor, the cost of some additive is well worth the peace of mind. IMO

Don

[rowekmr]

Oops, I was off by a digit. By quick glance I thought it was 17,500.

720Deere wrote:
Well the link that you provided says the fuel is compressed to 12 MPa which equates to roughly 1750 psi. Not exactly what I would call very close to 26,000 psi.

[Perrysburg_Dodg]

720Deere wrote:

Perrysburg Dodgeboy wrote:
You guys that think adding "lubricity" to "ULSD" is not needed in older per 07 trucks, are out of your minds. Older diesels are designed to run on standard diesel as in high sulfur content. Run your per 2007 diesel without adding some kind of lube to the fuel and you WILL be replacing your injection pump and injectors.

OP adding non-syn 2 cycle oil to your fuel will keep your diesel happy.
Here is a link to a site that has done a lot of research on it.Link

BTW there is not #1 or #2 diesel anymore, ULSD does have a winter blend or extra anti-gelling additives but that's it.

Don

BTW go to any of the real diesel engine manufactures web-sites and see what they are saying if you think it's just "marketing" ! :R

Don, are you actually advocating the use of 2 cycle oil in DPF equipped diesels? That is a far worse thing than using CH or earlier rated oil.

No I'm not. Reread my post I said PRE 2007 diesels before DEF.

[45Ricochet]

720Deere wrote:
Well the link that you provided says the fuel is compressed to 12 MPa which equates to roughly 1750 psi. Not exactly what I would call very close to 26,000 psi.

:B Exactly
But that 26k is a CP3, the CP4 is more like 3300 PSI. Try that in a gasser and you'll know what the term "spiting plugs" means :W

[hone_eagle]

Wes Tausend wrote:
...

What lubes the high pressure injectors in new direct injection gasoline engines?

Is gasoline "slipperier" than #2 fuel oil? :h

Wes
...

Nothing lubes them - they pin all their hopes on exotic coatings ,seems to work ok.

[720Deere]

Well the link that you provided says the fuel is compressed to 12 MPa which equates to roughly 1750 psi. Not exactly what I would call very close to 26,000 psi.

[rowekmr]

Very close to it in direct injection gasoline engines

http://www.bosch-automotivetechnology.com/en/de/powertrain/powertrain_systems_for_passenger_cars_1/direct_gasoline_injection_1/direct_gasoline_injection_1.html

[720Deere]

Wes Tausend wrote:
...

What lubes the high pressure injectors in new direct injection gasoline engines?

Is gasoline "slipperier" than #2 fuel oil? :h

Wes
...

Is gasoline injected at 26,000 psi?

[DirtyOil]

Correct. They brew the sulfur out of it along with the lube. They then add some kind of lube to it (hopefully)! I believe some stations (Pacific Pride?) then document each delivery with a sample test to insure the lube was added. Without that added lube diesels would be littering our highways.

X2 Sulphur is acidic... north American diesel fuel winter blends are produced by blending a percentage of #1 kerosene with #2 to achieve a CFPP for the different ambient temperatures in the various regions. (CFPP - cold filter plugging point). Or, as most fuel suppliers do, produce winter fuel using additives as it is cheaper. Now for Arctic regions, winter fuel... that's another story, lots of blending there.


p.s. never used any "off the shelf" additives in my diesels.

[Wes_Tausend]

...

What lubes the high pressure injectors in new direct injection gasoline engines?

Is gasoline "slipperier" than #2 fuel oil? :h

Wes
...

[45Ricochet]

RAS43 wrote:


The process to remove the sulfur from diesel fuel also removed some of it's lubricating properties. Hone eagle is correct-sulfur is not a lubricant.

Correct. They brew the sulfur out of it along with the lube. They then add some kind of lube to it (hopefully)! I believe some stations (Pacific Pride?) then document each delivery with a sample test to insure the lube was added. Without that added lube diesels would be littering our highways.

[RAS43]

Perrysburg Dodgeboy wrote:

hone eagle wrote:
Sulfer is not ,never has been a lubricant .
just sayin

:h that's funny because that's not what I have read. Google ULSD and older diesels. There are studies showing injectors and pump failures have more tripled since ULSD became the standard. Just like unleaded burned exhaust valves and seats in cars designed for leaded fuel. Sulfer does add lubricity to diesel fuel, if it didn't why has pump and injector wear increased in older diesels?
Don

The process to remove the sulfur from diesel fuel also removed some of it's lubricating properties. Hone eagle is correct-sulfur is not a lubricant. As for injector/pump failures, the fleet I worked for did not see any of these issues on our older equipment when ULSD fuel was introduced. And we had a large variety of trucks, off-road equipment and locomotives. Not saying it didn't happen but I don't believe it was as big an issue as the internet reported. Could have been many different issues.
As for the unleaded gas thing, well that is a whole different issue. A lot of myth there too.

[720Deere]

Perrysburg Dodgeboy wrote:
You guys that think adding "lubricity" to "ULSD" is not needed in older per 07 trucks, are out of your minds. Older diesels are designed to run on standard diesel as in high sulfur content. Run your per 2007 diesel without adding some kind of lube to the fuel and you WILL be replacing your injection pump and injectors.

OP adding non-syn 2 cycle oil to your fuel will keep your diesel happy.
Here is a link to a site that has done a lot of research on it.Link

BTW there is not #1 or #2 diesel anymore, ULSD does have a winter blend or extra anti-gelling additives but that's it.

Don

BTW go to any of the real diesel engine manufactures web-sites and see what they are saying if you think it's just "marketing" ! :R

Don, are you actually advocating the use of 2 cycle oil in DPF equipped diesels? That is a far worse thing than using CH or earlier rated oil.

[Perrysburg_Dodg]

hone eagle wrote:
Sulfer is not ,never has been a lubricant .
just sayin

:h that's funny because that's not what I have read. Google ULSD and older diesels. There are studies showing injectors and pump failures have more tripled since ULSD became the standard. Just like unleaded burned exhaust valves and seats in cars designed for leaded fuel. Sulfer does add lubricity to diesel fuel, if it didn't why has pump and injector wear increased in older diesels?

Don