My wife and I bought our Liberty CRD in April of 2005 and have had no trouble with it. The rear breaks were making scraping noises. The dealer replaced them and no more noise! We get an overall average of 24 mpg and have a little over 7200 miles on it. The reason I joined this forum is … about six months ago the key-lock station where we get our diesel switched to low sulfur diesel. Our Jeep now seems to have a lot more engine noise then before we started using the LSD. I was talking to a friend of mine, who has a Comings diesel, and he said when he switched to an additive called Longer Diesel Life (Produced by Oil Service Fuels) his truck runs quieter, with less smoke and slightly better mileage. My question is: have any of you ever heard of or used this product? I would add it based on my friends experience, but don’t know if the CRD engine would react differently than a Cummings. I know it sounds like snake oil, but good things are said about it on the web, and my friend has been using this for about two years. I would like to hear any constructive comments any of you might have.

The processes to remove sulfur from diesel fuel also remove some lubrication. They as in refineries are putting in additives to get back some lubrication but with profit loss don't expect too much. You can add any of the name brand additives which will help with mileage also. A quart of VIRGIN veggie oil to a tank helps.

_________________
2006 Liberty Sport CRD, Provent CCV mod

It sounds like you're already going out of your way to get the Low Sulfer Diesel already. I would recommended maybe using B20 bio. The lubricating BioDiesel keep my CRD pretty quiet when I use it. It also gets about 1-2 MPG better milage when I use it.

you should be able to find a station using the following website:
http://afdcmap2.nrel.gov/locator/FindPane.asp

_________________
LOST#065178
2005 KJ Sport CRD
2.5" Daystar(F) Skyjacker(R) hybrid lift
245/75/16 MTRs on Moab rims
JKS Supernerf Rockrails/MOPAR skids
Aeroturbine 2525

You are in Washington, try using biodiesel. B20 is really good, but if you can't find that B5 is even a good benefit.

In fact, many places are planning on using 2% (B2) to get back the lubrocity lost in the refining process for ULSD.

Also, Washington has new laws which require biodiesel use (as a percentage of total state diesel sales) - so you will be seeing much much more biodiesel availability around the state...

http://www.biodiesel.org/buyingbiodiesel/retailfuelingsites/showstate.asp?st=WA

_________________
http://www.pdxbiodiesel.org

Ok guys get the terms right:

Low Sulfur Diesel (LSD) = 350 to 500 PPM sulfur (been manatory for on road vehicles for over a decade)

Ultra Low Sulfur (ULSD) = <15 PPM Sulfur (required after 15 Oct '06 nation wide, CA Sept 1, '06)

What were you buying, LSD or ULSD? Some ULSD is avalable in some markets already even outside west coast area.

_________________
91 MB 300D 2.5L Turbo. Her's

05 MB E320 CDI. Mine

Yeah, OldNavy and I being "old school" remember hearing about Timothy Leary pushing some LSD out on the West Coast area back in the day.

_________________
2005 Black CRD Limited w/105,000 miles
Mann Provent 200, Airbox Mod, ORM Mod
New 545RFE, TC & Redesigned pump @ 25,020 miles
New EGR Flow Control Valve @ 25,020 miles
New Transfer Case input/output seals @ 32,787 miles
SEGR Kit @ 52,000 miles
SunCoast TC and Transgo Shift Kit @ 52,000 miles

According to this posting by oldnavy, the refineries are supposed add lubricity to make up the difference. It should be better for your engine all around.

http://www.lostjeeps.com/forum/phpBB3/vie ... php?t=8240

I'm all for using biodiesel but this whole lubricity thing smacks of fear mongering.

_________________
Chris
Current:
2007 Steel Blue Metallic Grand Cherokee CRD Limited
GDE Eco Tune and DPF delete
CB Engineering DPF delete pipe
EHM

Past (sold to Mountainman):
2005 Patriot Blue Liberty CRD Limited

It wasn't imaginary the first time around when we transitioned to LSD in the 90's. Pumps sprang leaks and pumps failed internally. Hopefully it goes better this time.

_________________
Matt B.

05 Limited CRD. Bought it new. 112k on the clock now.

GDE Eco-tune, rear differential drain plug (drilled and tapped the pumpkin), transmission pan drain plug, Fumoto oil valve, fuel filler neck restriction removed, front hitch, Hayden fan clutch, Sears P1 battery since 08, Mobil 1 5w40, 5 volt glow plugs, DIY timing belt at 109k

The common reason for pump failure in the early days of LSD was seal failure, but it actually effected less then 1% of the diesels on road and 5% of farm tractors nation wide if I remember the numbers correctly.

_________________
91 MB 300D 2.5L Turbo. Her's

05 MB E320 CDI. Mine

Figures I'd be in the 1%.

_________________
Matt B.

05 Limited CRD. Bought it new. 112k on the clock now.

GDE Eco-tune, rear differential drain plug (drilled and tapped the pumpkin), transmission pan drain plug, Fumoto oil valve, fuel filler neck restriction removed, front hitch, Hayden fan clutch, Sears P1 battery since 08, Mobil 1 5w40, 5 volt glow plugs, DIY timing belt at 109k

The nearest Bio Fuel is B20 in Odel OR. It is 60+ miles one way. I have three five gal diesel cans and drive to Odel as often as I can to fill the KJ and cans, but it’s a long way to go. Thanks for the info!

Keep your eyes open. Washington's new biofuels laws mean there will be biodiesel pumps springing up all over.

_________________
http://www.pdxbiodiesel.org

What we need for the CRD is a little tanker trailer option to chase down biodiesel.

_________________
2005 Liberty Sport CRD, Lt Khaki, sunroof

Thankful to now be an EX-CRD owner.

I use the Power Service to get the cetane up and add lubricity. It is a shame cetane level are not required to be posted on the pump. You have no idea what you are getting when you fuel up. To add lubricity, I have heard some mechanics will add a little ATF to the tank. Seems like it would work. Have not tried it? Any opinions?

This subject goes beyond pump problems. You have to also look at the lubricity requirements of the internal workings of those little electronic fuel injectors with close to 24K psi behind them.

Common problem in Detroit Diesel products when LSD was introduced. Detroit's don't have a central injection pump, instead each cylinder has it own pump in the form of a "unit" injector that is powered off the cam/rocker arm. Inside that unit injector is a small electronic solonoid valve to control injector timing (similliar timing mechanism to electronic common rail injectors) which became prone to failure/jambing when LSD was introduced.

_________________
2005 Liberty Sport CRD, Lt Khaki, sunroof

Thankful to now be an EX-CRD owner.

VW uses the PumP Duce on it's cars, but is I guess switching over to common rail starting in '07 MY from what I hear. They had a lot of problems with proper spec oils to keep the cam from scarring.

I agree that the lubricity thing is the talk of fear mongers, and if you just always use an adative till everyone gets switched over to the ULSD for awhile you will not have a problem with lubricity. Big time true if you buy B2, B5, B10, B20, B99 or B100 fuel.

_________________
91 MB 300D 2.5L Turbo. Her's

05 MB E320 CDI. Mine