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D4 Oil Level
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robpenrose
 


Member Since: 12 Jan 2016
Location: Surrey / SW London
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United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

So are you guys actually topping your oil up then when the car says the level is ok to keep at the top of the marker?

Reason I ask is that I asked on here before and was told not to as it messes with the car monitoring the oil quality.
 

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Post #178279523rd Feb 2017 7:47 pm
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Red Merle
 


Member Since: 30 Aug 2014
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Yes, that's exactly what I do.
  
Post #178280323rd Feb 2017 7:57 pm
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Red Merle
 


Member Since: 30 Aug 2014
Location: Cornwall
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robpenrose wrote:
You shouldn't put any oil in unless the car asks for it.


How do you expect your car to ask for oil?
  
Post #178280423rd Feb 2017 7:59 pm
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BLFarrar
 


Member Since: 02 Aug 2006
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France 2006 Discovery 3 TDV6 HSE Auto Lugano TealDiscovery 3

robpenrose wrote:
.......Reason I ask is that I asked on here before and was told not to as it messes with the car monitoring the oil quality.


Are you sure it does this ?

If it does I'd like to know how....
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Post #178280923rd Feb 2017 8:04 pm
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robpenrose
 


Member Since: 12 Jan 2016
Location: Surrey / SW London
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United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

Red Merle wrote:
robpenrose wrote:
You shouldn't put any oil in unless the car asks for it.


How do you expect your car to ask for oil?


When you follow the procedure of checking the oil, if it needs some, it says "Add 0.5l" or similar. There is a procedure in the handbook which then tells you how to add it.

If it says ok, you don't need to add any is my understanding?
 

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Post #178281423rd Feb 2017 8:11 pm
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Robbie
 


Member Since: 05 Feb 2006
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United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Red Merle wrote:
robpenrose wrote:
You shouldn't put any oil in unless the car asks for it.


How do you expect your car to ask for oil?


It tells you how much to add and then incorporates the new sensed level into the oil quality algorithm. If the vehicle has a number of aborted DPF cycles and the oil level rises beyond that acceptable (due to diesel contamination) then the vehicle will display the oil service caption.

As discussed elsewhere on the forum there is a concern that the algorithm allows too much oil contamination as it seems rather too relaxed about a rise in oil level.
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Post #178281623rd Feb 2017 8:11 pm
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Red Merle
 


Member Since: 30 Aug 2014
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Interesting. Time to look that up for myself....
  
Post #178282023rd Feb 2017 8:15 pm
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swansty
 


Member Since: 21 Sep 2008
Location: Northern Ireland
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Northern Ireland 2010 Discovery 4 3.0 TDV6 XS Auto Zermatt SilverDiscovery 4

I checked my level this morning on the IID and the car. IID says 4.5L, the car display shows halfway between min and max, but doesn't state how much should be added. Think I will buy a litre today and add half and see what difference that makes. I though there was a litre between min and max on the display but the IID tool volume doesn't support this..
 

Last edited by swansty on 24th Feb 2017 12:20 pm. Edited 1 time in total 
Post #178299024th Feb 2017 9:30 am
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swansty
 


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Northern Ireland 2010 Discovery 4 3.0 TDV6 XS Auto Zermatt SilverDiscovery 4

Double post
  
Post #178299124th Feb 2017 9:30 am
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Naks
 


Member Since: 12 Jul 2010
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South Africa 2011 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

hmm, but when I check with the IID, the volume is not always the same within the space of minutes - so how do I get an accurate reading???

After my commute to work of 8km, I see 5.5L on one day, and 6.3L the next day, so which reading do I trust? Shocked
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Post #178299424th Feb 2017 9:34 am
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Robbie
 


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United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Like for like (same temperature and sufficient time to flow back to the sump) the results should be the same - mine are.
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Post #178300524th Feb 2017 9:51 am
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robpenrose
 


Member Since: 12 Jan 2016
Location: Surrey / SW London
Posts: 850

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

swansty wrote:
I checked my level this morning on the IID and the car. IID says 4.5L, the car display shows halfway between min and max, but doesn't state how much should be added. Think I will buy a litre today and add half and see what difference that makes. I though there was a litre between min and max on the displace but the IID tool volume doesn't support this..


When you check the oil using the correct procedure, does the car ask for oil or say ok? If ok, see robbies post above.

If it needs some, it will say add "0.5" or whatever
 

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Post #178300624th Feb 2017 9:52 am
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swansty
 


Member Since: 21 Sep 2008
Location: Northern Ireland
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Northern Ireland 2010 Discovery 4 3.0 TDV6 XS Auto Zermatt SilverDiscovery 4

Car doesn't ask for any oil. Just rechecked and level is on the first notch above halfway. IID now saying 4.9L with a level of 127m (though I believe this to be mm). I don't have a DPF so not as concerned about the level rising due to contamination.
  
Post #178305724th Feb 2017 12:32 pm
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Naks
 


Member Since: 12 Jul 2010
Location: Stellenbosch, Republic of the Western Cape
Posts: 506

South Africa 2011 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

is 5.5L enough? or should I top up until it reads 6.5?
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Post #178306224th Feb 2017 12:56 pm
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swansty
 


Member Since: 21 Sep 2008
Location: Northern Ireland
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Northern Ireland 2010 Discovery 4 3.0 TDV6 XS Auto Zermatt SilverDiscovery 4

I would go by what the car display says after ensuring the oil was cold and sufficient time given for all to drain back to sump after switching off. and add half a litre max at a time until you can see the effect on the display.
  
Post #178307324th Feb 2017 1:25 pm
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