Last post on Mar 24, 2013 at 6:40 AM
You are in the Jeep Liberty and Jeep Liberty Diesel
What is this discussion about?
Jeep Liberty, Biodiesel, Diesel, SUV
#10686 of 11441 Revisiting an Old Question
Nov 22, 2009 (4:23 pm)
I posed this question to this forum back in 2005. Since that time, I am assuming that the increased experience with the Jeep Liberty CRD may give me a better answer. OK, with that prelude here it is:
How long will the turbocharger last?
I do not drive the vehicle at high speeds. Occasionally I pull a 5' X 8' trailer. I change the oil regularly, a bit more often than the owner's manual requires.
What signs or indications will the engine give if turbocharger failure is imminent?
How much of a cool-down is necessary with ordinary driving. Past comments given were to sit in the vehicle for a couple minutes with the engine idling.
Are there other oils that treat the turbo as well as Mobil 1?
As our CRD engines age, this question becomes increasingly important. The local dealer changed out the engine of a Liberty CRD a few months ago due to turbo failure. The people at the dealer told me that the woman who owned the vehicle had not been changing her oil.
I realize that these are the same old questions that the forum has beat on before, but I'm hoping that with time, we're all a bit wiser. I don't want my Jeep stuck in a snow bank with a blown turbo this Winter.
I thank you in advance.
#10687 of 11441 Re: 2005 Jeep Liberty CRD Fuel Filter [winter2]
Nov 22, 2009 (6:00 pm)
Yeah everyone has there own way of doing things. We are all different, it would be a boring world if everyone was the same. Whatever works for the individual.
Does anyone out there have any experience with the 3.0 CRD.
#10688 of 11441 Re: Revisiting an Old Question [willysjeep]
Nov 24, 2009 (8:59 am)
Are there other oils that treat the turbo as well as Mobil 1?
In my view, Mobil has not kept up with synthetic oil technology. My dealer has stopped using Mobil 1 in the Liberty CRD as well as the Grand Cherokee CDI because of lubrication issues and oil consumption issues.
I did use Amsoil in my CRD but found that I had a consumption issue. I use Amsoil in my wife's Chrysler without a problem. I am using RedLine 5W-40 and only add after 4000 miles of driving.
The big items to keeping a turbo healthy are frequent oil changes, the use of a good quality lubricant, watching oil consumption ( a side effect of owning a turbocharger engine), light engine demand until the engine is at operating temperature, and resting or cooling down the turbo after driving it. The cool down schedule in the owner's manual seems to be fine. This is my second turbocharged vehicle and I have not had any issues with turbocharger failure or turbocharger malfunction. I always cool down after running the engine, use a high quality lubricant and change oil more frequently than the manufacturer requires. As to turbocharger durability, with good care, at least several hundreds of thousands of miles.
As to the person who did not change oil in their CRD, what do you expect?
#10689 of 11441 Re: Revisiting an Old Question [winter2]
Nov 24, 2009 (2:58 pm)
I have 88k miles on my '06 Liberty CRD and I have always used Mobil 1 5W-40 Turbo Diesel Blend Oil. So far it is serving me well with no EGR problems and only an occasional turbo boost pressure sensor fault SEL. At 6k miles my oil is less than 1/2 quart low unless I have been working the turbo really hard by towing or other activity.
I would switch to another oil if I had a good reason to do so. I change my oil about every 6k miles spring thru fall when outside temps are at 50 degrees or above. Before the FROSTY weather comes, I change my oil every 3k miles.
I am considering using my engine block heater this winter just to keep the oil a little warmer in cold weather starts. I read a LONG but interesting paper about engine wear vs. oil change intervals and weather. I think there is definitely far more engine wear in the "cold start" winter months. I know the CRD is a little fussy and requires some effort to maintain but I really love my Liberty CRD!
#10690 of 11441 2005 Jeep Liberty CRD Fuel Filter
Nov 24, 2009 (3:14 pm)
I started changing my own Water Separator/Fuel Filters a year or so ago when my wife filled my CRD's tank with E-85 instead of Diesel! I posted a pretty detailed description of that job on this forum. As for the filter & WIF sensor, I tried to remove it as specified in the Jeep Factory Service Manual and it was too difficult from below. I ended up taking off the fuel hoses and clearing the area around the filter. Then I put a oil filter wrench (scissors type) on the housing and spun it loose from the engine compartment. I spilled a little fuel when removing the old filter but it was no big deal. I think 30 to 45 minutes is about right for the filter change but I did not remove the housing from the fire wall, just hoses and the filter cannister/WIF sensor.
#10691 of 11441 Thanks - old question revisited
Nov 24, 2009 (8:34 pm)
Thanks for the answers.
I use my block heater. In cold Northern weather, I've found the diesel to be so sluggish that I feel I'm a hazard on the road otherwise. The engine warms up much faster and a side benefit is that there is near immediate heating and defrosting.
#10692 of 11441 Re: Revisiting an Old Question [crash227]
Nov 26, 2009 (1:53 pm)
I stopped using formulations like Mobil 1 5W-40 diesel because of the CI-4+ rating, namely too much ash. I find that CJ rated oils do the trick being sufficiently low in ash that the EGR issue goes away.
As to the block heater, I started using it last year and enjoyed having heat nearly instantly after starting my CRD.
#10693 of 11441 Which OBD scanner should I purchase
Nov 26, 2009 (1:58 pm)
Recently my CRD threw a code, P1263 when viewed from the odometer. As it turns out, it was wrong as the number two glow plug had failed (P0672) and was replaced under warranty. The tech at the dealer told me not to trust the codes that can be made to appear at the odometer and that a scan tool is the way to go. I asked the tech for some suggestions as to which tool to purchase and he had none to offer.
Has anyone found a good scan tool that works correctly with the CRD? Suggestions and thoughts welcome.
#10694 of 11441 Re: Revisiting an Old Question [winter2]
Nov 26, 2009 (2:35 pm)
Winter,what oil do you recommend that can be bought in a Parts store or Walmart
#10695 of 11441 Re: Which OBD scanner should I purchase [winter2]
Nov 27, 2009 (12:23 am)
How often will you really need to use the OBDII_Euro scan tool? After six years of ownership and 100,000 miles I haven't yet had to use it.