 | Home > Series Land Rovers > Yep another oil question. |
 
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| spudfan Member Since: 10 Sep 2007 Location: Co Donegal Posts: 4704  
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Has anyone used 10w-40 semi synthetic in a series 111 with the 2.25 diesel engine? I have always used 15w-40 mineral oil but with the last cold spell I was wondering if the 10w-40 semi synthetic might be better for those first cranks on very cold days. No difference in the price for the oil. 1982 88" 2.25 diesel
1992 110 200tdi csw -Zikali 2008 110 2.4 tdci csw-Zulu 2011 110 2.4 tdci csw-Masai |
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11th Feb 2023 2:01pm |
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| TexasRover Member Since: 24 Nov 2022 Location: Paris Posts: 1084  
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Does the 2.25 diesel have flat tappets? The petrol does not. Still high zinc content is going to be beneficial as an additive.
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13th Jul 2023 4:39am |
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| Dinnu Member Since: 24 Dec 2019 Location: Lija Posts: 3421  
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On my 19J engine (which is not much different than your 10J), I always used 15W40 mineral oil.
But for my old VW diesel, I have always used 10W40 semi synthetic and that thing has lasted. So I have decided to use 10W40 on the 19J, but still have to see long term (I only started it for a couple of seconds since the engine rebuild - but even so, what is long term on a vehicle with occasional use?). Mind that the ambient temperature here is a bit higher than at your location. Winters can go to about 10dC, summer will be mid 30s. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing 2012 90 CSW, 2.2TDCI, Santorini Black |
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13th Jul 2023 4:50am |
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| o4dn Member Since: 08 Jan 2010 Location: South West Posts: 545 
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Shouldn't that be 20W50 according to the manual? “A Land Rover immobilized is a moral defeat for the driver and bad publicity for the vehicle, […] it's up to you to do justice to your Land Rover!” - Land Rover Driving Technique.
-- 2009 2.4 Puma Defender 90 SW 1979 Land Rover Series 3 88" |
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13th Jul 2023 6:15am |
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| spudfan Member Since: 10 Sep 2007 Location: Co Donegal Posts: 4704
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I did top up with 10w-40 semi synthetic but it seemed to clog the breather filter on top of the engine, so I just use 15w-40 mineral. I used to use 20w-50 but the handbook says that 15w-40 can be used. I just use the basic stuff and all is well. 1982 88" 2.25 diesel
1992 110 200tdi csw -Zikali 2008 110 2.4 tdci csw-Zulu 2011 110 2.4 tdci csw-Masai |
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13th Jul 2023 2:26pm |
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| Dinnu Member Since: 24 Dec 2019 Location: Lija Posts: 3421
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The handbook for a series 3 Land Rover was probably written based on oil technology from the 60s or possibly earlier. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black |
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13th Jul 2023 2:28pm |
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| spudfan Member Since: 10 Sep 2007 Location: Co Donegal Posts: 4704
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I agree as the specs listed for the oil have long been superceded. 1982 88" 2.25 diesel
1992 110 200tdi csw -Zikali 2008 110 2.4 tdci csw-Zulu 2011 110 2.4 tdci csw-Masai |
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13th Jul 2023 2:29pm |
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| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2420  
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The owner manual 2.25 santana diesel on a SIII recommended 10W40 api CC. Neither CD, nor above.
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13th Jul 2023 4:47pm |
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| spudfan Member Since: 10 Sep 2007 Location: Co Donegal Posts: 4704
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I am currently using Valvoline which has a CF classification. Very difficult to get anything with a lower rating.
CD Obsolete CAUTION: Not suitable for use in most diesel-powered automotive engines built after 1994. CC Obsolete CAUTION: Not suitable for use in most diesel-powered engines built after 1990 CF Obsolete CAUTION: Not suitable for use in most diesel-powered automotive engines built after 2009. Later “C” category oils are usually suitable or preferred for diesel automotive engines for which “CF” oils were specified. Older equipment and/or two-stroke diesel engines, especially those calling for monograde products, may however require “CF” category oil 1982 88" 2.25 diesel 1992 110 200tdi csw -Zikali 2008 110 2.4 tdci csw-Zulu 2011 110 2.4 tdci csw-Masai |
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13th Jul 2023 6:10pm |
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| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2420
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I would contact Morris Lubricants or westway. I guess they now their science. Puma 110" SW
............................................................. Earth first. Other planets later |
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13th Jul 2023 9:39pm |
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| spudfan Member Since: 10 Sep 2007 Location: Co Donegal Posts: 4704
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I have checked both Morris and Westway and their mineral 15w-40 is to a higher spec than CC/CD spec . 1982 88" 2.25 diesel
1992 110 200tdi csw -Zikali 2008 110 2.4 tdci csw-Zulu 2011 110 2.4 tdci csw-Masai |
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13th Jul 2023 10:06pm |
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| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2420
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One carries 40 monograde CC and the other 10W40 CC.
Back in those days our SIII used Ursa monograde 40 api CC all year round from -5 up to over 30C. Puma 110" SW ............................................................. Earth first. Other planets later |
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13th Jul 2023 10:13pm |
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