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Jeep Liberty Diesel

1290291293295296373

Comments

  • winter2winter2 Posts: 1,801
    I have been using the new "CJ" rated oil form Amsoil. It is a 5W-40 and I am very satisfied with it. I feel I would be putting the engine at risk by using the 5W-30 in spite of what you say. Most of the gassers you mention are using the 5W-20 to improve FE or operate variable cam or cylinder shut off schemes in their engines. Remember that gassers run at significantly lower compression than a diesel, so a heavier weight oil is not as crucial.
  • synlubessynlubes Posts: 184
    your answer is correct at the present time but the diesels are moving to lighter oils also manly for millage just like the gasser two or three years ago if you had mentioned a 5-40 oil for a diesel the diesel people would have screemd ten years ago strait thirty weight or forty weight with no fifteen -forty at all they said it was to thin watch the next year and you will see some five thirtys on the market diesels today start so quick the have to lubricate fast the only way is with synthetic oil or thin oils the europeans went to thin oils long before us manly the fifteen fortys and then the five fortys the are a head of us about five to ten years in lubrication but we are are catching up because of world engines that have to keep up with world market demands
  • nescosmonescosmo Posts: 453
    Synlubes... I do have the Jeep Liberty CD from 2004 to 2006 and in the 2004 they have the VM motori Liberty CRD and they recommend 10w-40 for the CRD for the 2.8 and 2.5 and now they recommend 5w-40. You are right. I am using the 5w-40 for now but when the supply that i have end i will go for the syn 15w-40 because there is no blow by and beside i live in a warm state.
  • synlubessynlubes Posts: 184
    i have customers that run the 15-40 and no problems like i have said in the past i think you could run molasses in that motor and not hurt it it is tough to muck american bull hanging on it egr etc
  • nescosmonescosmo Posts: 453
    Synlubes... Yes! If the engine is good for a Tractor in Italy, it should be excellent in my Libby.

    Nescosmo.
  • caribou1caribou1 Posts: 1,354
    I don't think you should make a direct comparison about the 2.8 CRD and a tractor. There are still older type diesel engines with less power offered on the EU market. Several friends are considering stepping back to get less trouble and smoother ride because of the extra difficulty when using the manual shifting. People complain that they stall too often when they start from standstill. Another aspect of this engine is that when the driver follows a conversation with his passengers on a fast portion of road, he often forgets to use the upper gear (6th in manual) because he needed the presence of torque a few seconds ago and this forced him to downshift. Down goes the mileage you paid for :sick:
  • synlubessynlubes Posts: 184
    be nice to have manual trannys over here we wouldn't have to worry about torque converters going out but there again we americans tend to be a little spoiled and dont like to shift maby that is why im overweight have a nice day
  • stbstb Posts: 31
    How do you calculate your fuel mileage (mpg)?

    I have a 2005 and the best I have gotten is 23mpg. Most fillups are 15 gallons or more traveling 300 to 330 miles. last fill up it took 15.7 gallons and I traveled 321 miles. This is the usual 20 to 22 mpg. Mostly highway driving with the cruise control set around 73mph at 2200rpm.
  • synlubessynlubes Posts: 184
    your millage and mine are about the same i have gotten twenty five for a high and eighteen for a low really hard to get a accurate fill up because os foaming of the diesel but we are pretty close to the same i dad a 2002 3.7 gasser about fifteen for a high but i drive about seventy most of the time
  • zoomy2zoomy2 Posts: 50
    thstranger

    I wouldn't think you would have any problems pulling the Casita and doubt you would see any difference in RPM.

    I'm still getting just over 20 mpg at 56-57 in 4th gear and around 16-17 in 5th at 65, I can live with this.

    Zoomy
  • winter2winter2 Posts: 1,801
    Until DCX and V.M. Motori clear their engines to run with a 5W-30 in the crankcase, I will continue to use either the 5W-40 or 15W-40 synthetic oils. I do not feel comfortable tempting the fates.
  • winter2winter2 Posts: 1,801
    That is kind of low FE in my view, but I tend to drive more gently. I get between 21 and 23 MPG when I commute and 28 and up on long trips. I generally keep the engine chugging along at about 1800 to 1900 RPM or about 62 MPH.
  • In a waiting room today. Motortrend magazine May 2007. Long story on fuels, motors, btu's, and mention of the gasoline compression engine. Any more news than the magazine?
  • faroutfarout Posts: 1,609
    crddude. The 20-23 mpg is what Motor Week got as an avrage for their long term test they had on their 2005 Jeep Limited CRD. For the 30,000 miles we owned our CRD the avrage came out to 21 mpg. The best we got was 25.4 the worst was 19. mpg. There are some who have said they got much better, I personally take their word for it.

    Farout
  • faroutfarout Posts: 1,609
    hamchamp: I am glad to hear that DCX is resolving this at last. We are to completely finish all the paper work on the buy back on may 1st. What's odd is we got the Compass on April 5th and it took 26 days to get the paper worked all done. Oh well this does take time.
    Have they reassembled your old CRD yet? They may not, and DCX may truck it to some place else to go to the auction. Ours went somewhere here in Missouri, and then to the auction. I won't ever own a diesel again. The US is geared to gasoline, and to brake out of the main stream into another type fuel is costly for the first buyers. I have resd DCX is only sending out a few CRD GC as there has been some issues that needed more work out time. I sure hope the ones that have good Liberty CRD's last well. I wish were one of that group.

    farout
  • nescosmonescosmo Posts: 453
    Hi Farout.... Hope that you like your Compass, tell me if it has the same power to pull your mobil home as the CRD.
    Sory to here about your case but my CRD works great. I use to put Chevron fuel and it used to run bad but ever since i put Sunnoco fuel, it run so smooth. Now all i do is clean the map sensor every 1k and bled the air out; Let me tell you it never been so good. I think that the ULSD fuel took care of the EGR valve issue, now it don't smoke only sometime when i clear it nose. Well i hope you are happy and please do not fade away. -YOU KNOW WE LOVE LOVE YOU-

    Nescosmo.
  • hamchamphamchamp Posts: 33
    Farout, Finally I have good news. We picked up a 2007 Dakota Quad Cab last evening. Still will have to wait for the paperwork, but that is always the case. The Dakota was about $1326.00 more than the Jeep, and we settled on paying $2500.00. The difference would be what was allowed for the mileage on the CRD. We felt that this was fair. We took your advise and asked for every paper that I had to sign, plus the paper that showed the deal that IGS made with the dealer. Kinda hard to interpret there figures but we were OK with the $2500.00 We did contact the attorney generals office and felt this was a help to us. The Jeep in a Heap is still at the dealers with the parts laying next to it. Now it has the paper sign in the window that it belongs to DCX. Thank you all for all your posting. You helped us through this waiting period. Good luck to all your CRDers.
    hamchamp :D
  • nescosmonescosmo Posts: 453
    Hamchamp.... Good life with your Dakota. I used to have a 1992 V6 with a tune in port engine it was the best. I hope you get good gas mileage with it, and that, was a good choice. My CRD is been very good with no problem for now; I think will keep it til it rust out, -love this machine- . The only complain that i had about the Dakota was the paint job, it was second class and DCX never paid for the bad job that they did on the pk truck, well please keep in touch.

    Nescosmo.
  • nescosmonescosmo Posts: 453
    Went to wally world and they are selling mobil 5w-40 now at a higher price than 5w-40 Rotella t. Now is Mobil better than Rotella, should i use Mobil or keep Rotella, is Mobil make the engine run smoother, with less noise. If any of you have made the change please let me know the diff.

    Nescosmo.
  • synlubessynlubes Posts: 184
    rotella will work fine not as good of oil but good enough
  • siberiasiberia Posts: 520
    Mobil make the engine run smoother?

    My CRD developed a ticky lifter using Mobil 1 5W40 that went away when I switched to Rotella 5W40 and has not returned. But, that may have been a random event that had nothing to do with the brand of oil. The main reason I switched to Rotella was price, availability and good enough.
  • siberiasiberia Posts: 520
    After 206 miles at 65 mph outside temp 70 F at stop:
    Engine oil temp = 170 F
    Transmission oil temp = 135 F
    Differential temp = 125 F

    After another 149 miles at 65 mph temp 84 F at stop:
    Engine oil temp = 170 F
    Transmission oil temp = 155 F
    Differential temp = 140 F
  • caribou1caribou1 Posts: 1,354
    Siberia,
    When you measure temperatures with an IR thermometer, be aware that two different materials (surfaces) will not give you the same proportional readings. You may have to put a spot of black matt paint (or IR reflective paint) where you take your measurement. All this to say the aluminium casting could be warmer than what you measured.
  • craigs1969craigs1969 Posts: 20
    Hi folks,

    My 06 CRD is due for the 30000 mile service. My questions are, 1. what has to be done and 2. must it be done by a dealership? This is the first car I've purchased new so I don't have any experience around this. Also, is there service that must be done to keep the warranty from being voided?

    thanks in advance for any responses.
    Craig
  • siberiasiberia Posts: 520
    When you think about it, Caribou1, you will know where I took the readings. The temperatures posted are in fact valid to the capabilities of the device. Indeed, temperatures read at the aluminum alloy castings were much lower than the proper readings posted.
  • winter2winter2 Posts: 1,801
    Craig,

    You do not need to go to the dealer for any servicing, unless you really want to. As long as the garage you use is reputable and warranties their work, that should be fine. Just be sure you keep your receipts in case there are issues later on.
  • jayriderjayrider Posts: 3,602
    Does anyone have any info on what a 30,000 service on a crd costs?
  • caribou1caribou1 Posts: 1,354
    If you reached both oil pans twice (under the truck) and have given a few minutes to allow the individual heat gradients to diminish, then I follow you. Heat exchangers (front radiators) when stacked will interact when you read their IR emission.
    The differential temperature should be proportional to the effort and time.
    I once drove from Spain to Switzerland (~500 miles) at a steady 80 mph. The original rear tires lost 30% of their rubber that day, but the engine and transmission seemed to enjoy it :shades:
    I've had 97,000 KM of pure pleasure so far.
  • synlubessynlubes Posts: 184
    you guys are way over my head but when i used to race sum we never bothered to worry abut oil temp just water is that wrong
  • caribou1caribou1 Posts: 1,354
    Synlubes,
    For a given displacement, modern engines are roughly 3 times more powerful than those you refer to. The counterpart to this will be more delicate care needed to preserve their performance.
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