Modern Diesel Fuels: - PeachParts Mercedes-Benz Forum

Doktor Bert · #1 01-28-2011, 12:20 PM

Have you noticed the inside of the fuel tank cap now gets rusty with the new diesel?????? It does on my car.....

Biodiesel300TD · #2 01-28-2011, 12:24 PM

Are you sure that you aren't getting moisture in your tank. Water vapor in the air will collect in your tank if you let you car sit alot or leave the tank fairly empty a lot.

H-townbenzoboy · #3 01-28-2011, 04:48 PM

Quote:

Originally Posted by Doktor Bert

Have you noticed the inside of the fuel tank cap now gets rusty with the new diesel?????? It does on my car.....

The fuel tank cap on our 300SD got rusty with the old diesel. Sorry, you can't blame this on ULSD. Like the other poster said, you've got condensation.

ForcedInduction · #4 01-28-2011, 06:54 PM

There is no "new diesel". You have been using the same fuel since 2006.

Biodiesel300TD · #5 01-28-2011, 09:43 PM

Quote:

Originally Posted by ForcedInduction

There is no "new diesel". You have been using the same fuel since 2006.

Technicality bro. It's relatively new, and we all knew what he was talking about it.

Doktor Bert · #6 01-28-2011, 10:40 PM

Well, I keep the old 116 full pretty much all of the time. I didn't have a rusty fuel cap until last year.......

pawoSD · #7 01-28-2011, 11:21 PM

I've had no issues with rust....and I usually run mine down to the last few gallons before filling....its only got about 3 left in it right now in fact.

Marvelicious · #8 01-29-2011, 12:47 AM

Quote:

Originally Posted by ForcedInduction

There is no "new diesel". You have been using the same fuel since 2006.

As pertains to a model year '78 car, that IS new.

whunter · #9 01-29-2011, 01:17 AM

ForcedInduction · #10 01-29-2011, 10:09 AM

Quote:

Originally Posted by Biodiesel300TD

Technicality bro.

No, 2006 is not new. If there were going to be any lubricity problems it would have happened en-masse in the last 5 years. The simple fact that an injection pump failure is still a very rare event proves lubricity is not an issue. It wasn't a problem when LSD was introduced and it still isn't with ULSD.

The lubricity "problem" is entirely a scare tactic used by additive manufacturers to increase sales.
If you use an additive it should be because of useful properties such as increasing cetane or preventing gelling, not marketing hype.

Biodiesel300TD · #11 01-29-2011, 12:22 PM

Quote:

Originally Posted by ForcedInduction

No, 2006 is not new. If there were going to be any lubricity problems it would have happened en-masse in the last 5 years. The simple fact that an injection pump failure is still a very rare event proves lubricity is not an issue. It wasn't a problem when LSD was introduced and it still isn't with ULSD.

The lubricity "problem" is entirely a scare tactic used by additive manufacturers to increase sales.
If you use an additive it should be because of useful properties such as increasing cetane or preventing gelling, not marketing hype.

Blah blah blah, and off topic, this thread had nothing to do with lubricity. You're not helping the guy out at all.

Yes, 2006 was 5 years ago. But it's the latest change in diesel fuel. And like I said, we all knew what he was talking about.

whunter · #12 01-29-2011, 01:09 PM

Quote:

Originally Posted by ForcedInduction

No, 2006 is not new. If there were going to be any lubricity problems it would have happened en-Mass in the last 5 years. The simple fact that an injection pump failure is still a very rare event proves lubricity is not an issue. It wasn't a problem when LSD was introduced and it still isn't with ULSD.

The lubricity "problem" is entirely a scare tactic used by additive manufacturers to increase sales.
If you use an additive it should be because of useful properties such as increasing cetane or preventing gelling, not marketing hype.

Your Opinion is based on anecdotal evidence, and wrong interpretation of the data..

Empirical evidence/chemical engineering data is conclusive, diesel fuel today has radically lower lubricity.
The only point open to debate is how seriously it is reducing injection pump durability life on each design.

Because there is solid science/data documentation; The lubricity "problem" is easy to exaggerate as a scare tactic for additive manufacturers to increase sales.

Diesel owners need to know fuel data
http://www.peachparts.com/shopforum/showthread.php?t=205368

FYI:
I add roughly TWO ounces of the cheapest dollar store; power steering/hydraulic, or engine oil to the fuel tank every fill-up.
My wife complained that her 300SD was louder, now she uses the same treatment and loves how quiet it is.

Cr from Texas · #13 01-29-2011, 01:45 PM

Quote:

Originally Posted by whunter

FYI:
I add roughly TWO ounces of the cheapest dollar store; power steering/hydraulic, or engine oil to the fuel tank every fill-up.
My wife complained that her 300SD was louder, now she uses the same treatment and loves how quiet it is.

My additive is 1 oz Startron (to avoid microorganisms) and 3 oz of TCW 2 cycle oil (it is intended to be burned) for lubricity. Works for me. It is quieter and idles smoother.
I premix the two and carry a couple of small containers in the trunk.

C Sean Watts · #14 01-29-2011, 01:50 PM

Quote:

Originally Posted by ForcedInduction

The lubricity "problem" is entirely a scare tactic used by additive manufacturers to increase sales.

In 1999, SAE gave the college of engineering at NCSU an R&D grant regarding sulfur in fuel. The reduction in lubricity resulting from the process of removing sulfur, not the absence of sulfur itself, were very clearly quantified. The NC DOT maintenance fleet was among the first, behind the US Army, to use bio-diesel blends for exactly that reason.

whunter · #15 01-29-2011, 02:36 PM

Quote:

Originally Posted by Biodiesel300TD

I'm glad I'm not the only one that thinks Forced it full of BS.

He is young.

I prefer to regard it as very strong personal opinions.

Most people have strong personal opinions, on some topic.

Example:

Wikipedia:List of controversial issues
http://en.wikipedia.org/wiki/Wikipedia:List_of_controversial_issues