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DISCO 4 ENGINE FAILURES
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dgardel
 


Member Since: 03 Nov 2009
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Italy 2011 Discovery 4 3.0 SDV6 HSE Lux Auto Santorini BlackDiscovery 4

adam wrote:
^ Thanks for that - useful post
I checked my Service invoices last night - garage uses C1 (Hurray - my D4 has no DPF), checked my Top Up oil that I have been using for years - Castrol Magnatec 5W 30, but cant see C reference (Boo) - but only ever used in very small quantities (D3 / 4 never oil users) between changes so assume will be OK.

5W30 C1 on order as Top up oil Thumbs Up


If your D4 hasn't DPF, you can use C2 oil!
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Post #18744461st Nov 2017 8:18 am
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marco 110
 


Member Since: 15 Nov 2009
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France 2012 Discovery 4 3.0 SDV6 HSE Auto Fuji WhiteDiscovery 4

dgardel wrote:
C3 has the HTHS higher than C1 an C2, that means more viscous friction, not good for the rotating bearings issue.



Hello.

Are you sure ? My idea was the higher HTHS is a better protection ?! Nope ?
Thinking buy C4 oil for my D4 sdv6 with DPF.. Neutral
 marco.

http://www.youtube.com/user/marcsteph110?feature=mhum

Ex : D3 tdv6
D4 sdv6 HSE , high beam assist , surround cam, tv , and a lot of nice stuff..

 
 
Post #18745161st Nov 2017 11:04 am
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DSL
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United Kingdom 2011 Discovery 4 3.0 SDV6 HSE Auto Zermatt SilverDiscovery 4

I’m getting another confusion headache!! Big Cry Big Cry Big Cry
 

11 D4 HSE - just Dee, no more Double Disco. Sad 
 
Post #18745281st Nov 2017 11:57 am
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dgardel
 


Member Since: 03 Nov 2009
Location: Veneto (Heart) & Piemonte (Head)
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Italy 2011 Discovery 4 3.0 SDV6 HSE Lux Auto Santorini BlackDiscovery 4

marco 110 wrote:
dgardel wrote:
C3 has the HTHS higher than C1 an C2, that means more viscous friction, not good for the rotating bearings issue.



Hello.

Are you sure ? My idea was the higher HTHS is a better protection ?! Nope ?
Thinking buy C4 oil for my D4 sdv6 with DPF.. Neutral


True, but at cost of higher viscous friction
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IID Pro MV License

Defender 90SW SE Puma Stornoway Grey Outback Engineering Edition
 
 
Post #18745311st Nov 2017 12:14 pm
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jamesSE4x4R
 


Member Since: 09 Mar 2016
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United Kingdom 2010 Discovery 4 3.0 SDV6 XS Auto Stornoway GreyDiscovery 4

Having previously driven round for hours trying to find the right grade (as per handbook) have always just grabbed top ups from the stealer when I'm in there, however I've bought from three different dealers and been given three different grades of oil, all telling me it was the right one!

can someone do a sticky with links for the right bloody oils please.. I'm getting headaches just thinking about it.
 www.southeast4x4response.org.uk Press Officer  
Post #18745421st Nov 2017 12:47 pm
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dgardel
 


Member Since: 03 Nov 2009
Location: Veneto (Heart) & Piemonte (Head)
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Italy 2011 Discovery 4 3.0 SDV6 HSE Lux Auto Santorini BlackDiscovery 4

5W-30 ACEA C1

JLR recommend 5W/30 – WSS–M2C934–B

ACEA C1 is 5W/30 – WSS–M2C934–B compliant
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Last edited by dgardel on 1st Nov 2017 12:57 pm. Edited 1 time in total 
Post #18745431st Nov 2017 12:51 pm
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Martin
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Wales 2006 Discovery 3 TDV6 SE Manual Buckingham BlueDiscovery 3

Ford Spec WSS-M2C934B
 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
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Post #18745441st Nov 2017 12:53 pm
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DSL
Keeper of the wheelie bin 


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Click image to enlarge


 

11 D4 HSE - just Dee, no more Double Disco. Sad 
 
Post #18745481st Nov 2017 1:01 pm
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LT
 


Member Since: 31 Dec 2005
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2016 Discovery 4 3.0 TDV6 Landmark LE Auto Santorini BlackDiscovery 4

Apologies if I haven't been paying enough attention Smile

Is 5W/30 – WSS–M2C934–B also the correct spec. for the later EU6 (Adblue) SDV6 engines?
 2006 D3 HSE (Original & still the best)
2010 D4 HSE (A bit bling)
2014 D4 HSE (Almost too bling)
2015 D4 HSE (A heated what?)
2016 D4 Landmark (Written Off)
2016 D4 Landmark (Surely the last!) 
 
Post #18745491st Nov 2017 1:07 pm
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adam
 


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dgardel wrote:
5W-30 ACEA C1

JLR recommend 5W/30 – WSS–M2C934–B

ACEA C1 is 5W/30 – WSS–M2C934–B compliant
Thumbs Up

Ordered and being delivered tomorrow - all sorted, confusion over.

Manual does state WSS–M2C934–B (MY10, page 205) but doesn't define as C1 - so thanks again Very Happy
  
Post #18745561st Nov 2017 1:27 pm
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dgardel
 


Member Since: 03 Nov 2009
Location: Veneto (Heart) & Piemonte (Head)
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Italy 2011 Discovery 4 3.0 SDV6 HSE Lux Auto Santorini BlackDiscovery 4

Thumbs Up
 Discovery 4 HSE Luxury Santorini Black Outback Engineering Edition

IID Pro MV License

Defender 90SW SE Puma Stornoway Grey Outback Engineering Edition
 
 
Post #18745931st Nov 2017 3:44 pm
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marco 110
 


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[quote="dgardel"]
marco 110 wrote:
dgardel wrote:
C3 has the HTHS higher than C1 an C2, that means more viscous friction, not good for the rotating bearings issue.





True, but at cost of higher viscous friction


Sorry don't understand why is this a problem ? You think its not good the rotating bearings issue ?
I just want to understand before buy a wrong oil spec..
As the LR spec is the "lower" we can do or not ? My idea is trying to found a better protection (if possible) for the engine...
 marco.

http://www.youtube.com/user/marcsteph110?feature=mhum

Ex : D3 tdv6
D4 sdv6 HSE , high beam assist , surround cam, tv , and a lot of nice stuff..

 
 
Post #18746061st Nov 2017 4:34 pm
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dgardel
 


Member Since: 03 Nov 2009
Location: Veneto (Heart) & Piemonte (Head)
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Italy 2011 Discovery 4 3.0 SDV6 HSE Lux Auto Santorini BlackDiscovery 4

because more viscous friction tends to drag (rotate) the bearings when the crankshaft rotates, especially with cold oil

Also the lion engine is an engine where the coupling dimensions are very small, this is another reason for use medium HTHS (Ferrari, AMG, JLR sports engines are running 0W/20 oils with HTHS 2,0)

Experiment show that wear problems appears when HTHS is less than 1,4, our oil is more than 2,9 (up to 3,5)
 Discovery 4 HSE Luxury Santorini Black Outback Engineering Edition

IID Pro MV License

Defender 90SW SE Puma Stornoway Grey Outback Engineering Edition
 
 
Post #18746441st Nov 2017 6:18 pm
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marco 110
 


Member Since: 15 Nov 2009
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France 2012 Discovery 4 3.0 SDV6 HSE Auto Fuji WhiteDiscovery 4

Thanks for explanation.. Thumbs Up
 marco.

http://www.youtube.com/user/marcsteph110?feature=mhum

Ex : D3 tdv6
D4 sdv6 HSE , high beam assist , surround cam, tv , and a lot of nice stuff..

 
 
Post #18748092nd Nov 2017 12:15 am
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