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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 814  
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I can understand your concerns, but unless you are prepared to have your oil checked at all oil changes for a while to establish a pattern its hard to say..
If you are not having any running issues then most probably the work involved in sorting that out would be extensive.. |
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8th Aug 2025 9:19am |
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| MercianRover Member Since: 07 Apr 2022 Location: Culworth Posts: 163 
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Checking the elements detected against the "likely source" list coolant is the one which appears most often, if you have concerns perhaps carry out a compression test and a coolant sniff and pressure leakdown checks to see whether the head gasket is failing.
You don't state the engine type but I presume it's your TDCi - can you remove the heater plugs and see if there are any lacking soot (i.e. that cylinder is being "steam cleaned"). |
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8th Aug 2025 10:41am |
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| Bluest Member Since: 23 Apr 2016 Location: Lancashire Posts: 4316 
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Yes, it's a 2.4tdci. I did spot the Boron reading, but assume that as it wasn't flagged in the commentary it is not a level to cause any concern. I don't have any change in coolant level or anything. I'll look at getting one of those sniff test kits. 2007 110 TDCi Station Wagon XS
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8th Aug 2025 12:05pm |
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| MercianRover Member Since: 07 Apr 2022 Location: Culworth Posts: 163
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Look also at the Molybdenum and Silicon likely sources too, I worked from L-R along the histogram.
Interesting there isn't a change in level. |
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8th Aug 2025 12:32pm |
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| Bluest Member Since: 23 Apr 2016 Location: Lancashire Posts: 4316
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I think the Boron, Silicon and Molybdenum can all come from additives in the oil the fact they are present isn't necessarily a problem. I read on another forum that when queried, Millers only get concerned if Boron is higher than 300ppm 2007 110 TDCi Station Wagon XS
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8th Aug 2025 2:25pm |
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| Fernando Member Since: 25 Oct 2017 Location: CABA Posts: 98  
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It could be the injector seals against the cover.
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8th Aug 2025 6:34pm |
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| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2489  
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The results are perfectly normal. Consider as well, labs never report any uncertainty on the results (+/- error).
Short trips and stop and go reduce the performance and life of the oil and it is considered a "severe drivng condition". Puma 110" SW ............................................................. Earth first. Other planets later |
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9th Aug 2025 12:37pm |
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| Bluest Member Since: 23 Apr 2016 Location: Lancashire Posts: 4316
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The lab are saying the soot figure is not normal though. For it to be above the acceptable level after so few miles is a concern. No short journeys in this vehicle either. 2007 110 TDCi Station Wagon XS
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9th Aug 2025 9:16pm |
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| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2489
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any black smoke, smelly exhaust, air filter, to much idling? Maybe change to a "better" oil or change it at 6000 km interval. Puma 110" SW
............................................................. Earth first. Other planets later |
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9th Aug 2025 9:41pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2457
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So having high soot and coolant contamination would make me look at the EGR cooler.
Bypassing both the cooler and mapping out and blanking the EGR may be a good idea. |
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9th Aug 2025 9:52pm |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 814
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Maybe its me missing something here but the op said the only cause for concern in the report was soot levels...
Coolant contamination was not a concern.. There has been an assumption that because the level particularly of boron that that leads to coolant because the table says that's one source.. engine oil additives could be another source and high because the oil is still relatively new and additives still effective...I dont know..but the lab arnt concerned.. Someone mentioned injector sealing above..to me that could be a good call for high soot.. assuming that the injector install is as it is on my 2.2 engine..they would blow by into the rocker covering lead to oil contamination... |
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10th Aug 2025 6:33am |
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| Bluest Member Since: 23 Apr 2016 Location: Lancashire Posts: 4316
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You're right.Andy, it's the soot that is the concern to me.
Is there a check or test to confirm leaking injector seals? 2007 110 TDCi Station Wagon XS |
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10th Aug 2025 9:55am |
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| Will@LRW Member Since: 04 May 2019 Location: UK Posts: 228  
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For reference, my 300Tdis have had about about 0.5-1% TIM (total insoluble matter, soot) on a 5000 mile interval.
The real value of an oil analysis is monitoring the change in relative values over time. I would wait until the next oil change and do another analysis LR Workshop New parts illustrations https://www.lrworkshop.com/diagrams/land-r...ed-corners Find a Defender's history and spec: https://defender.lrworkshop.com Last edited by Will@LRW on 10th Aug 2025 2:03pm. Edited 1 time in total |
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10th Aug 2025 10:42am |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 814
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Which is what i suggested in my first post.. a number of tests may give a better idea of a trend..
That aside im not sure what engine we are on about but if it is the type with injector pockets within the rocker cover as opposed to external to it then the comments in my last post would be relevant.. As to how you establish a blow by with the rocker cover in place is more problematic.. listening.. removing the oil filler and listening and observing.. If you have a scope then install a pulse sensor or pressure sensor through the oil filler cap and see if the waveform gives an indication.. |
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10th Aug 2025 11:53am |
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