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Diesel Fuel Filtration

Yahoo Message Number: 7248
I recently had a discussion with a fellow RVer. He told me that he had a 2 micron diesel fuel filter system installed on his coach because of known problems associated with using a standard 10 micron Fleetguard filter. He showed me a story written up in a truckers magazine to back up his story.

In brief, the story said that the older diesel fuel injection systems run at about 3,000 psi, but the newer systems (like the new Cummins ISL engine) run at 30,000 psi. The new higher pressure computerized fuel injection enables greater fuel economy, but is capable of doing substantial damage to fuel injectors with contaminent particles only 7 microns in size. Damaged injectors cause loss of fuel economy, damage to fuel pumps, smokey exhaust and greater engine wear due to excessive fuel reducing oil lubricity. The newest filtration systems are filtering fuel down to 2 microns to eliminate these expensive engine problems.

I called Fleetguard and they told me that the standard Fleetguard filters I use are rated as follows: FS1242 is rated at 20 microns at 96%; FS1015 is an upgrade to the FS1242 and is rated at 10 microns at 98.7%; and the FS1022 (the one with the water sensor in the bottom) is rated at 10 micron at 98.7%. So the standard filters only filter particles down to 10 microns.

The industry is pushing 2 micron fuel filtration to eliminate these problems. Fleetguard has developed a new system called Optiguard, but Cummins has not yet adopted it use. Caterpillar has adopted 2 micron filtration and seems to recognize the problem. You can read all about the Optiguard filter at

http://www.fleetguard.com/fleet/pdfs/product_lit/fleetguard_brochures/ LT15075.pdf

Has anyone who has a high milage coach experienced any of these problems? Or is this guy just blowing smoke?

The new 2 micron fuel filtration systems run about $700 installed.
I'm wondering if it is really worth it.
Any comments from the technical experts of the group are appreciated.

Re: Diesel Fuel Filtration

Reply #1 –
Yahoo Message Number: 7250
Hi Folks,

When you read the referenced LT15075 carefully, even in the Optiguard version (filter element removed from top with clear plastic bowl vs present screw-on), Cummins has not changed it requirements, namely a 10 micron filter. The FH23000 with the FS19557 element runs $250 with about one hour to install and $100 for pumbing. It's still a 10 micron filter which replaces the primary(FS1022). For reference, some Cats require 2 micron, others 13 micron.
Fred Kovol

[quote author=rvrobert2003" \.\.\>] > I recently had a discussion with a fellow RVer. He told me that he > had a 2 micron diesel fuel filter system installed on his coach > because of known problems associated with using a standard 10 micron > Fleetguard filter. He showed me a story written up in a truckers > magazine to back up his story.

In brief, the story said that the older diesel fuel injection [/quote]
systems

Quote
run at about 3,000 psi, but the newer systems (like the new Cummins > ISL engine) run at 30,000 psi. The new higher pressure computerized > fuel injection enables greater fuel economy, but is capable of doing > substantial damage to fuel injectors with contaminent particles only > 7 microns in size. Damaged injectors cause loss of fuel economy, > damage to fuel pumps, smokey exhaust and greater engine wear due to > excessive fuel reducing oil lubricity. The newest filtration

systems

Quote
are filtering fuel down to 2 microns to eliminate these expensive > engine problems.

I called Fleetguard and they told me that the standard Fleetguard > filters I use are rated as follows: FS1242 is rated at 20 microns

at

Quote
96%; FS1015 is an upgrade to the FS1242 and is rated at 10 microns > at 98.7%; and the FS1022 (the one with the water sensor in the > bottom) is rated at 10 micron at 98.7%. So the standard filters

only

Quote
filter particles down to 10 microns.
> The industry is pushing 2 micron fuel filtration to eliminate these > problems. Fleetguard has developed a new system called Optiguard, > but Cummins has not yet adopted it use. Caterpillar has adopted 2 > micron filtration and seems to recognize the problem. You can read > all about the Optiguard filter at >http://www.fleetguard
com/fleet/pdfs/product_lit/fleetguard_brochures/

Quote
LT15075.pdf

Has anyone who has a high milage coach experienced any of these > problems? Or is this guy just blowing smoke? >

The new 2 micron fuel filtration systems run about $700 installed.
I'm wondering if it is really worth it.

Any comments from the technical experts of the group are

appreciated.

Re: Diesel Fuel Filtration

Reply #2 –
Yahoo Message Number: 7251
Hello Fred;

Thanks for your comments. I agree with you that Cummins has not changed their 10 micron filter spec. BUT, it seems that the truckers who run new Cummins engines do recognize a problem that Cummins has not acknowledged yet. And that's my point exactly... The problem IS recognized by the industry (truckers), but it is NOT yet recognized by Cummins.

The FH23000 with the FS1020 filter is rated by Fleetguard at 2 microns.

What I'd like to know is if any high milage Cummins owners have experienced the problem.

The price quote I got today for the FS23000 with the standard FS19557 element is from Cummins in Tampa. They charge $575.31. Where did you find it for $250?

Thanks again for your comments.

Robert

Quote from: fredkovol

Hi Folks,

When you read the referenced LT15075 carefully, even in the

Optiguard

Quote
version (filter element removed from top with clear plastic bowl vs > present screw-on), Cummins has not changed it requirements, namely

a

Quote
10 micron filter. The FH23000 with the FS19557 element runs $250

with

Quote
about one hour to install and $100 for pumbing. It's still a 10

micron

Quote
filter which replaces the primary(FS1022). For reference, some Cats > require 2 micron, others 13 micron.
Fred Kovol

Quote from: rvrobert2003"[/quote
Quote
..>]
> I recently had a discussion with a fellow RVer. He told me that

he

Quote
had a 2 micron diesel fuel filter system installed on his coach > > because of known problems associated with using a standard 10

micron

Quote
Fleetguard filter. He showed me a story written up in a truckers > > magazine to back up his story.
>

> In brief, the story said that the older diesel fuel injection > systems

> run at about 3,000 psi, but the newer systems (like the new

Cummins

Quote
ISL engine) run at 30,000 psi. The new higher pressure

computerized

Quote
fuel injection enables greater fuel economy, but is capable of

doing

Quote
substantial damage to fuel injectors with contaminent particles

only

Quote
7 microns in size. Damaged injectors cause loss of fuel economy, > > damage to fuel pumps, smokey exhaust and greater engine wear due

to

Quote
excessive fuel reducing oil lubricity. The newest filtration > systems

> are filtering fuel down to 2 microns to eliminate these expensive > > engine problems.
>

> I called Fleetguard and they told me that the standard Fleetguard > > filters I use are rated as follows: FS1242 is rated at 20

microns

Quote
at

> 96%; FS1015 is an upgrade to the FS1242 and is rated at 10

microns

Quote
at 98.7%; and the FS1022 (the one with the water sensor in the > > bottom) is rated at 10 micron at 98.7%. So the standard filters > only

> filter particles down to 10 microns.
>

> The industry is pushing 2 micron fuel filtration to eliminate

these

Quote
problems. Fleetguard has developed a new system called

Optiguard,

Quote
but Cummins has not yet adopted it use. Caterpillar has adopted

2

Quote
micron filtration and seems to recognize the problem. You can

read

Quote
all about the Optiguard filter at > >http://www.fleetguard > com/fleet/pdfs/product_lit/fleetguard_brochures/ > > LT15075.pdf
>

> Has anyone who has a high milage coach experienced any of these > > problems? Or is this guy just blowing smoke? > >

> The new 2 micron fuel filtration systems run about $700

installed.

Re: Diesel Fuel Filtration

Reply #3 –
Yahoo Message Number: 7252
Robert,

Have 75,000 miles on 350 ISC engine with no fuel problems.

Steve

Intrigue #10673

Re: Diesel Fuel Filtration

Reply #4 –
Yahoo Message Number: 7253
Hi Folks,

I got the quote for the FS23000 from Cummins Cal Pacific Inc, Ventura CA.

Fred Kovol

[quote author=rvrobert2003" \.\.\>] > Hello Fred;

Thanks for your comments. I agree with you that Cummins has not > changed their 10 micron filter spec. BUT, it seems that the [/quote]
truckers

Quote
who run new Cummins engines do recognize a problem that Cummins has > not acknowledged yet. And that's my point exactly... The problem

IS

Quote
recognized by the industry (truckers), but it is NOT yet recognized > by Cummins.

The FH23000 with the FS1020 filter is rated by Fleetguard at 2 > microns.

What I'd like to know is if any high milage Cummins owners have > experienced the problem.

The price quote I got today for the FS23000 with the standard

FS19557

Quote
element is from Cummins in Tampa. They charge $575.31. Where did > you find it for $250?

Thanks again for your comments.

Robert

[quote author=fredkovol"

> Hi Folks,

> When you read the referenced LT15075 carefully, even in the > Optiguard

> version (filter element removed from top with clear plastic bowl

vs

Quote
present screw-on), Cummins has not changed it requirements, namely > a

> 10 micron filter. The FH23000 with the FS19557 element runs $250 > with

> about one hour to install and $100 for pumbing. It's still a 10 > micron

> filter which replaces the primary(FS1022). For reference, some

Cats

Quote
require 2 micron, others 13 micron.
> Fred Kovol
>
>

[quote author=rvrobert2003"
> > ..>]
> > I recently had a discussion with a fellow RVer. He told me that > he

> > had a 2 micron diesel fuel filter system installed on his coach > > > because of known problems associated with using a standard 10 > micron

> > Fleetguard filter. He showed me a story written up in a

truckers

Quote
> magazine to back up his story.
> >

> > In brief, the story said that the older diesel fuel injection > > systems

> > run at about 3,000 psi, but the newer systems (like the new > Cummins

> > ISL engine) run at 30,000 psi. The new higher pressure > computerized

> > fuel injection enables greater fuel economy, but is capable of > doing

> > substantial damage to fuel injectors with contaminent particles > only

> > 7 microns in size. Damaged injectors cause loss of fuel

economy,

Quote
> damage to fuel pumps, smokey exhaust and greater engine wear due > to

> > excessive fuel reducing oil lubricity. The newest filtration > > systems

> > are filtering fuel down to 2 microns to eliminate these

expensive

Quote
> engine problems.
> >

> > I called Fleetguard and they told me that the standard

Fleetguard
 

Re: Diesel Fuel Filtration

Reply #5 –
Yahoo Message Number: 7254
I think when they talk of NEW they are referring to the ISL Engine. And the ISC would not be as proned to the problem. I'm checking My cummin's manual this evening for Fuel Pressure Spec. 3,000 psi verses 30,000 psi someone mentioned earlier... Lee in Portland with 350 ISC "rheavn" ssfarms1@...> wrote: