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Thread: Disco II engine oil consumption - help

  1. #1
    Join Date
    Jul 2008
    Location
    Kiowa, Colorado
    Posts
    29

    Default Disco II engine oil consumption - help

    Have a 2004 disco II with Bosch engine. Had oil changed at 52,150 and dealer service done as per manual. No problems noted from service. Checked oil after service to be sure topped off at 6.8 qrts, it was. Checked oil at 58,322 was low by 3.5 qrts. (i was following dealer service intervals on oil, but that will now change to every 3000 ) Having oil changed today (58,420) and replaced with 15/40 for summer heat. Dealer suggested this too. I plan on monitoring every day for 1 week and then every 500 miles to see what consumption rate is. no visislbe oil leaks on engine or underneath, except for slight oil residue on top of left valve cover near PCV valve tube. There is also no visible blue smoke or burnt oil odor. Do these engines use oil? The dealer told me it was not uncommon to see 1+ qrt usage between oil changes.

  2. #2
    Join Date
    Apr 2008
    Location
    Carmel, IN
    Posts
    29

    Default

    Tighten down your valve covers with a 6 or 8 mm spanner - you'll be amazed at the difference. I believe there are a total of 4-6 bolts squished in between the plugs. That's also what causes a significant percentage of the oil spots underneath a rover. You might also check your drain plug seal and replace that.
    _____________
    Chris Carpenter


  3. #3
    Join Date
    Jul 2008
    Location
    Kiowa, Colorado
    Posts
    29

    Default

    Thanks. I will definitely look at that to see if any difference occurs in oil consumption.

  4. #4
    Join Date
    Jul 2008
    Location
    Kiowa, Colorado
    Posts
    29

    Default

    Well - valve cover bolts were tight. The dealer could find no leaks. Using 1 qrt per 1000 mi since oil change with 15w 40. There is no blue smoke.

    I removed hoses from top of valve covers that go into air intake - wet oil in the hoses. I am not noticing a PCV valve. Have I missed something? Are there PCV valves on the Disco. WHile looking on line for parts to verify the pCV valve I found an oil separator - where does that go?

  5. #5
    Join Date
    Apr 2008
    Location
    Carmel, IN
    Posts
    29

    Default scratching my head

    You know, as much as I hate to say it, that's not terribly atypical of Disco's. My SI certainly burned through 3 quarts per oil change (3k miles), and my SII probably burned through 1. I could speculate and guess, but that'd be wasting both of our time. I'm sure there's someone out there smarter than me that could start to answer this. Certainly the guys on Discoweb would know where to start.
    _____________
    Chris Carpenter


  6. #6
    Join Date
    Jul 2008
    Location
    Kiowa, Colorado
    Posts
    29

    Default

    Thanks Carpe - What you provided is the type of information I am looking for. This is my first Rover (I have no idea why a waited so long) and I know that they can be particular, but I was not sure about the oil issue. What you describe is very similar to what the dealer told me too. I have been monitoring every day now and it seems it will average out at 1 qrt for every 1600 miles or so. It also appears that highway driving uses a little more oil. So, if this is normal and not out of the realm of a typical Rover I am ok, but while I still had an extended warranty I wanted to get on the issue.

    Thanks again four input.

  7. #7
    Join Date
    Apr 2008
    Location
    Carmel, IN
    Posts
    29

    Default Another thing

    You might check your disco for temperature. I started to see heat build up in both of my disco's. They both ran hot and the coolant hose was a problem in both of them. When you look at oil consumption, there are 2 things that can generally go amuck. 1 - oil can leak out. That's generally the case w/LRs. 2 - the engines can actually burn it up. When your cooling system has a leak, it's not out of the question for that V8 to start cooking. You'll notice a little smell.

    Considering that the Disco's can take just shy of 7qts of oil per change, burning through 3 or so between changes isn't detrimental, but it does put more stress on an already large and hungry engine. Land Rovers have made me aware of the practice of checking your fluid levels, to be sure. Unfortunately, the best solution is often 1) making sure your coolant is topped, 2) making sure your dipstick is showing that you have enough oil, and 3) placing a large piece of cardboard on the floor of the garage underneath where you park your disco.
    _____________
    Chris Carpenter


  8. #8
    Join Date
    Jul 2008
    Location
    Kiowa, Colorado
    Posts
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    Default

    Carpe - thanks man. I htought about hte coolant issue as rising temperature. I just had the 60K service done with coolant replaced. No leaks, etc. In fact, I still do not need cardboard yet. It is funny you mention they run hot. I noticed that and wondered if the disco run hotter than most vehicles. I also noticed that after driving for an hour or so if you remove the oil filler cap there is "steam" that comes out of the engine. I presume this is oil cooking off.

  9. #9

    Default

    Colorado, you're last statement got my attention. I have always been told that if you have coolant or water leaking into your engine one way to tell is by taking off your oil filler cap and if steam comes out or there is condensation on it then that's definitely a possibility. Are you ever low on coolant when you take your Rover in for service? I'm having to top off my coolant and oil every now and then because I need to replace my head gaskets. I'm going to be doing that later this year. But I have heard stories of the coolant and oil mixing inside the engine causing the engine to run very hot and eventually blow. I'm not trying to alarm you, but with your earlier comments (such as seeing no oil leaks) that makes me think you may want to ask about that. When researching whether or not I should change my head gaskets these are the type of things I heard from mechanics. But just so you'll know mine is an '02 SE7 with the 4.0 engine, so your's could be different. I have changed to a synthetic oil that gives me an anaysis and I'm changing my oil anywhere from every 6,500-8,000 miles. I'm having to put in about a half quart to three quarters of a quart in between changes. I hope this helps. And I hope you definitely don't have the problem I described.

  10. #10
    Join Date
    Jul 2008
    Location
    Kiowa, Colorado
    Posts
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    Default

    TN - coolant is fine. No oil bubles, etc. I am not loosing any coolant. In fact the dealer just did the 60k service and I have been monitoring oil, coolant, etc every night. My next thought is to do a leak down test and see if I have valve guide issues, etc depending on where the air can be heard. Over the last 1200 miles I used 1.5 quarts of oil.

    If you, or nayone else, have any suggestions on doing the leak down test that would be helpful.

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