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10W 40 oil
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bigtam64
 


Member Since: 19 Nov 2009
Location: Leeds
Posts: 192

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Manual Santorini BlackDiscovery 3
10W 40 oil

easy question i hope guys

Is 10W 40 too thick an oil for the D3

looking to do an oil change this week and I have been given about 50 Ltrs of 10w 40

Dougie
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Post #108094431st Mar 2013 8:26 am
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anglefire
 


Member Since: 09 Mar 2010
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England 

The correct spec is 5W30 (Ford) - I bought 2x 4ltr Castrol Magnatec ford spec from Halfords for about £42.00 - special offer this weekend
 Mark.
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Post #108094931st Mar 2013 8:35 am
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Biffysun
 


Member Since: 09 Jul 2011
Location: Central
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Scotland 2016 Discovery 4 3.0 SDV6 SE Tech Auto Corris GreyDiscovery 4

As he says, Magnatec for Ford is the stuff but maybe worth trying here too Thumbs Up

http://www.eurocarparts.com/

£36 for 2x4Litres
  
Post #108095731st Mar 2013 8:52 am
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fishinmad
 


Member Since: 30 Jan 2012
Location: St Ives
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United Kingdom 2006 Discovery 3 TDV6 S Auto Bonatti GreyDiscovery 3

There is a lot on here about the best oil to use, i think the general view is That Castrol Edge is best (v expensive mind you)
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Post #108096731st Mar 2013 9:14 am
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NoDo$h
 


Member Since: 02 May 2006
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Ukraine 

10-40 is the spec for the td4 engine used in Freelander and Rover 75 amongst others. Certainly wrong spec for your D3
  
Post #108097531st Mar 2013 9:27 am
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kayble
 


Member Since: 01 Aug 2015
Location: Lincolnshire
Posts: 147

United Kingdom 2005 Discovery 3 TDV6 S Manual Java BlackDiscovery 3

Want to bring this thread back to life briefly.

A specialist in my area has recommended use of 10W/40 on older D3 TDV6 engines. I politely declined in favour of OEM oil spec recommendation - but is anyone being advised/doing the same thing?
  
Post #154987524th Oct 2015 8:24 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20713

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

The internal tolerances are too fine in the TDV6 engine to run a thicker 10W40 oil

Stick with the correct grade and spec, or better Thumbs Up

Personally, I run 5W30 Fully Synthetic, Low Ash (or D4 oil) in my D3
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Post #154987624th Oct 2015 8:30 am
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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

Madness. Stick with oils that meet or exceed the specifications required. The oil weight is but one factor, the rest of the numbers matter just as much. The TDV6 is intolerant of any variation in oils.

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Post #154987824th Oct 2015 8:32 am
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Disco_Mikey
 


Member Since: 29 May 2007
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Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

I agree with you Robbie, but the same engine in a Pug/Citroen has a different requirement in specification Thumbs Up
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Post #154988124th Oct 2015 8:39 am
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Lost for Words
 


Member Since: 03 Sep 2013
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United Kingdom 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

I choose to stick with Magnatec as the happy medium - thanks to Edge, it's not so expensive, yet is still the original spec, so I have complete piece of mind. Smile
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Post #154988524th Oct 2015 8:46 am
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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

Disco_Mikey wrote:
I agree with you Robbie, but the same engine in a Pug/Citroen has a different requirement in specification Thumbs Up


Just goes to show how fine the tolerances are.

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Post #154988824th Oct 2015 8:48 am
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DSL
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Member Since: 11 May 2006
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Ukraine 

Or alternatively try it and see, then let us know how it goes. What's the worst that can happen? Whistle Whistle
  
Post #154988924th Oct 2015 8:51 am
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stew 46
 


Member Since: 01 Dec 2011
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England 2005 Discovery 3 TDV6 SE Manual Siberian SilverDiscovery 3

Friends mrs put the wrong oil in there Audi TT Shocked had to find a replacement engine not many weeks later Crying or Very sad
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Post #154989124th Oct 2015 8:53 am
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BLFarrar
 


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

DSL wrote:
Or alternatively try it and see, then let us know how it goes. What's the worst that can happen? Whistle Whistle

short term probably nothing other than you think you have scored a victory & saved a few bob
long(er) term you could be in for an expensive experience intuit your engine displays signs of premature(or early onset) or terminal wear
The engine oil has to more than you realise...besides doing the obvious & lubricating top end, bottom end main (crank) bearing & camshaft bearings - it also lubricates the turbo(/s) (high speed & very high temperature) & importantly the pistons & cylinder walls each one with its own set of requirements.
The wrong oil means compromise..which means that something isn't going to get its right lubrication & will wear.
I destroyed a V6 B27 Volvo engine by thinking that Duckhams Q20-50 oils was better than the the right spec 10-30...the camshafts were 'effed at 105k miles....from what I was told mine lasted longer than most.
The issue was that oil didn't get to the camshafts early enough...every time you started & warmed the engine through there was seconds of things running dry or dryer than required. Expensive wear.
The replacement engine a similar V6 but from a Lancia Thema (with some fundamental differences) lasted way beyond another 180k miles using the "right" oils.
I didnt use the wrong oil to save money - on the contrary I spent more as I always changed oil at the then service interval of 6k miles. But it got me in the end.
Why risk the possibility of engine wear & possible failure (high cost) to save some few pounds (low expenditure) ? .....OK you may pass this situation on to someone else by getting rid (before you have to)
Use the LR specified oils...they usually know best.
I say usually as they have made a terrible mistake in thinking that Auto gearboxes can have sealed for life fluid (oil)...it is for life but the life is far too short in most cases (in my case 90k miles).

Right oil at right intervals + low cost maintenance & longer engine life
. My vehicles are a long term prospect for me so the work done at each oil change pays off years & miles later.

Why take the risk ?.....just to see...
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Post #154990824th Oct 2015 9:57 am
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s410man
 


Member Since: 02 Jul 2013
Location: wales
Posts: 16

United Kingdom 

Which magnatec oil should I be using??

I text castrol and they recommend a1 but euro car parts only have a5 or c3

What's the difference? ?

Cheers
  
Post #155128526th Oct 2015 2:31 pm
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