Oil for Land Rover NA AJ133 5.0 V8 LR4

O

OilMiser

Joined
Jun 7, 2024
Messages
17
I’ve spent entirely too much time researching and thinking about this.
I’ve got a 2011 LR4 with 127k miles meticulously maintained by the dealership for my boss before I just recently bought it off her after personally caring for it the past 11 years. The chains haven’t been done, coolant pipes have been, but that’s not what I’m here to discusss. I’m here, naturally, to talk about oil.

My manual states WSS-M2C925-A 5w20 oil should be used.

The new JLR spec however is a 0w20 and is very expensive.

And I suspect that the change in oil spec (and cold weight) are purely for EPA purposes, certainly not to help improve the longevity of my 12 year old V8 I don’t think? Longevity and (relative) engine reliability are my goals, this thing will never be fuel efficient haha.

I suspect any brand name full synthetic would easily meet the original spec which actually seems to not require anything unusual of the oil aside from an increased oil change interval? (15k miles!?!) which I won’t be doing anyways (~5k mikes is the plan)
However, I happened to find this signed letter from JLR engineers approving penzoil ultra platinum 5w20. So I’m tempted to end my search there and happily embrace $28/gallon.
But I’m also wondering if an upgrade to motul, amsoil, or even M1 EP would be better despite not having concrete evidence that it meets the obscure and obsolete original spec for this big strong yet delicate V8 and it’s notorious timing chain tensioner.

Thank you for your $0.02





IMG_2443.jpeg



IMG_2446.jpg
 
A few previous discussions on this topic or similar. Some may be familliar:

Manual calls for oil meeting “Ford WSS-M2C925-A”

My owner’s manual calls for oil meeting “Ford WSS-M2C925-A”. This standard is pretty obsolete and finding oil that meets it is difficult. Is there anything special about that standard? Or can I safely use oils meeting other, more common standards like the Ford WSS-M2C945-A? I don’t want to harm...
bobistheoilguy.com

WSS-M2C925-A revisited

This specification was previously discussed in 2009 in this thread, and it was established that it was Jaguar/Land Rover specific. I understand WSS-M2C930-A is more or less linked with API SM/ILSAC GF-4, and it is prermissible by these two manufacturers to use ILSAC GF-4 oil for top ups...
bobistheoilguy.com

New Jaguar / Land Rover Oil

I have a 2012 Jaguar XJL which requires Castrol Edge Professional OE (SLX) 5w20 "Specially engineered for Jaguar and Land Rover". This oil can only be purchased from a Jaguar or Land Rover Dealer. For this Vehicle, Castrol recommends using Castrol EDGE 5W-20 which can be purchase anywhere...
bobistheoilguy.com

Need "Expert" Advice or Opinion ACEA Dillema

Hello Again. Finally retired the old X-Type (Ford Mondeo) in favor of another real Jaguar. Just bought 2012 XF Portfolio. 10K miles. Ok enough background. On with my concern. For the record, I run Total Quartz Energy 9000 0W30 in ALL my vehicles. Years of astonishing UOA's have proven, beyond...
bobistheoilguy.com

Land Rover spec. STJLR.51.5122/WSS-M12R536-A

I have a 2015 Range Rover with a Supercharged 3.0L V6. My apologies if this has been covered but I can't seem to find it on the forums. Where in the USA can you buy Range Rover motor oil with the current specs, that isn't the dealership? Is there a Castrol, Pennzoil or Mobil equivalent? SAE...
bobistheoilguy.com

It's time to play "What oil for"... 2011 Land Rover RR w/ 5.0 NA motor

Just picked up a very clean 2011 Land Rover Range Rover with the 5.0 NA motor. For the most part, I run M1 0W-40 in all my motors except for the M3. But, this is my first GDI motor and they have some known timing chain and tensioner issues; it feels like that may change the equation a bit. I...
bobistheoilguy.com

Oil Spec STJLR 51.5122

I know there have been other discussions on the Jaguar specific oil (Castrol Edge Professional E) meeting the spec STJLR 51.5122, but I wanted to revitalize the discussion. I recently went to my local Jaguar dealership and they advised they are out of stock on that oil, and have been out of...
bobistheoilguy.com

Jaguar V8 5.0SC engine oil

Hey, just needed some info on a good replacement engine oil for this engine. Have been using 5w-20 castrol OEM engine oil, would like to try redline or motul for better protection. Not a track car, so considering OCI of 7000 miles or higher. What are your experiences on ford based V8?
bobistheoilguy.com
 
I have a 2018 Jaguar XF 2.0 and I am urrently using Valvoline EP 0W-20 on this car that has an average OCI of 5K miles.
I met a guy last year who drives a Land Rover LR4 at Jiffy Lube. He was there for an oil change using Pennzoil and I was there for state inspection. We had a long chat and he bragged about the mileage on his LR4 reaching 150K+ miles. He isn't very choosey about the oil he puts in there whether it has a JLR approval or not but he frequently changes oil on his LR4 nore often than the required OCI by LR.
 
kschachn said:
A few previous discussions on this topic or similar. Some may be familliar:

Manual calls for oil meeting “Ford WSS-M2C925-A”

My owner’s manual calls for oil meeting “Ford WSS-M2C925-A”. This standard is pretty obsolete and finding oil that meets it is difficult. Is there anything special about that standard? Or can I safely use oils meeting other, more common standards like the Ford WSS-M2C945-A? I don’t want to harm...
bobistheoilguy.com

WSS-M2C925-A revisited

This specification was previously discussed in 2009 in this thread, and it was established that it was Jaguar/Land Rover specific. I understand WSS-M2C930-A is more or less linked with API SM/ILSAC GF-4, and it is prermissible by these two manufacturers to use ILSAC GF-4 oil for top ups...
bobistheoilguy.com

New Jaguar / Land Rover Oil

I have a 2012 Jaguar XJL which requires Castrol Edge Professional OE (SLX) 5w20 "Specially engineered for Jaguar and Land Rover". This oil can only be purchased from a Jaguar or Land Rover Dealer. For this Vehicle, Castrol recommends using Castrol EDGE 5W-20 which can be purchase anywhere...
bobistheoilguy.com

Need "Expert" Advice or Opinion ACEA Dillema

Hello Again. Finally retired the old X-Type (Ford Mondeo) in favor of another real Jaguar. Just bought 2012 XF Portfolio. 10K miles. Ok enough background. On with my concern. For the record, I run Total Quartz Energy 9000 0W30 in ALL my vehicles. Years of astonishing UOA's have proven, beyond...
bobistheoilguy.com

Land Rover spec. STJLR.51.5122/WSS-M12R536-A

I have a 2015 Range Rover with a Supercharged 3.0L V6. My apologies if this has been covered but I can't seem to find it on the forums. Where in the USA can you buy Range Rover motor oil with the current specs, that isn't the dealership? Is there a Castrol, Pennzoil or Mobil equivalent? SAE...
bobistheoilguy.com

It's time to play "What oil for"... 2011 Land Rover RR w/ 5.0 NA motor

Just picked up a very clean 2011 Land Rover Range Rover with the 5.0 NA motor. For the most part, I run M1 0W-40 in all my motors except for the M3. But, this is my first GDI motor and they have some known timing chain and tensioner issues; it feels like that may change the equation a bit. I...
bobistheoilguy.com

Oil Spec STJLR 51.5122

I know there have been other discussions on the Jaguar specific oil (Castrol Edge Professional E) meeting the spec STJLR 51.5122, but I wanted to revitalize the discussion. I recently went to my local Jaguar dealership and they advised they are out of stock on that oil, and have been out of...
bobistheoilguy.com

Jaguar V8 5.0SC engine oil

Hey, just needed some info on a good replacement engine oil for this engine. Have been using 5w-20 castrol OEM engine oil, would like to try redline or motul for better protection. Not a track car, so considering OCI of 7000 miles or higher. What are your experiences on ford based V8?
bobistheoilguy.com
Click to expand...
Thank you! Yes I have read through those and none seem to provide additional insight
 
I’m surprised there’s not more info out there about this.
The spec I’m most interested in meeting is the ford one. I’ve read comments that some are listed as “suitable” for that spec but I haven’t actually seen it listed anywhere first hand, only via comments.

The new JLR spec (STJLR.03.5004) is fine I’m sure but was not made specifically for my engine.
 
possibly a good all around oil may be any SP-GF-6a Dexos gen 3 , 5w-30 high milage version synthetic of popular brand,of course dependent on your climate, or perhaps Mobil and other brands of FS 0w-40 is a good performer in alot of uses. the JLR spec may be a look ,but hard to find,and maybe paying for this spec that serves very little purpose,any modern euro oil may be a thought,just keep up on regular changes 5k.
 
Last edited:
facility1 said:
possibly a good all around oil may be any SP-GF-6a Dexos gen 3 , 5w-30 high milage version synthetic of popular brand,of course dependent on your climate, or perhaps Mobil and other brands of FS 0w-40 is a good performer in alot of uses. the JLR spec may be a look ,but hard to find,and maybe paying for this spec that serves very little purpose,any modern euro oil may be a thought,just keep up on regular changes 5k.
Click to expand...
Isn't that a Ford V8? I wouldn't put much stock in Ford oil specs. Besides, it's probably been superseded several times.

That's a heavy vehicle and I would be using a 5w-30 or 40.
 
Escape08 said:
Jaguar and Land uses the same engine on their vehicles. Here, Jaguar owners talking about the oil you are referring to on this forum in which I am also a member
https://www.jaguarforums.com/forum/xk-xkr-x150-33/oil-wss-m2c945-vs-wss-m2c925-232555/
Click to expand...
Thank you!!
I’ve been on the jag forums, that’s where I got the JLR letter re: penzoil, but I haven’t seen this thread you’ve posted and it has some good info. That is the first time I’ve seen anyone say they changed the spec for wear issues which throws a wrench in my whole theory of meeting the original spec and that the new one is purely for CAFE standards etc
 
ka9mnx said:
Isn't that a Ford V8? I wouldn't put much stock in Ford oil specs. Besides, it's probably been superseded several times.

That's a heavy vehicle and I would be using a 5w-30 or 40.
Click to expand...

Thank you for the input! I also feel like 5w30 would be best for this engine at 127k miles but I don’t have enough concrete evidence to make the change yet, when JLR wants me to go to 0w20 instead!

It’s not really a ford engine, designed by JLR but produced during ford ownership at a ford factory, so it does have fomoco stamped on the bottom of it but no relation to the 5.0 coyote.
It is an old ford oil spec but I couldn’t find anything that said any newer specs are in any way related to this spec as is typical.
 
Last edited:
facility1 said:
possibly a good all around oil may be any SP-GF-6a Dexos gen 3 , 5w-30 high milage version synthetic of popular brand,of course dependent on your climate, or perhaps Mobil and other brands of FS 0w-40 is a good performer in alot of uses. the JLR spec may be a look ,but hard to find,and maybe paying for this spec that serves very little purpose,any modern euro oil may be a thought,just keep up on regular changes 5k.
Click to expand...
That all makes sense to me, I do want to jump to 5w-30 and it makes sense to just get the best, latest stuff out there. I’m just trying to think it all through and make sure I’m not missing something. My main goal is to keep the timing chain and tensioner as clean as possible!
 
OilMiser said:
That all makes sense to me, I do want to jump to 5w-30 and it makes sense to just get the best, latest stuff out there. I’m just trying to think it all through and make sure I’m not missing something. My main goal is to keep the timing chain and tensioner as clean as possible!
Click to expand...
The answer to this is frequent OIC 5K or less.
The engine is tried and true but cooling system is the weakest area, mainly plastic coolant pipes that is known to burst. Water pump needs to be replaced as well. Members at the Jaguar forums, instead of replacing a OEM plastic coolant pipes, a non-OEM aluminum coolant as the replacement parts available at eBay. Don't want to go off the subject, but once you smell coolant or Coolant Low Warning message at the dash. Pull over off the road and turn off the engine immediately
 
Escape08 said:
The answer to this is frequent OIC 5K or less.
The engine is tried and true but cooling system is the weakest area, mainly plastic coolant pipes that is known to burst. Water pump needs to be replaced as well. Members at the Jaguar forums, instead of replacing a OEM plastic coolant pipes, a non-OEM aluminum coolant as the replacement parts available at eBay. Don't want to go off the subject, but once you smell coolant or Coolant Low Warning message at the dash. Pull over off the road and turn off the engine immediately
Click to expand...
For sure, thank you!
The coolant crossover pipes and water pump were replaced 2-3 years ago with the “updated” Land Rover parts. So I’m hoping to make it another 10k miles or 2 years before tearing the whole thing down for timing chains and I’ll definitely put in the aluminum pipes if they’ve been working well for people. I also saw another solution being put together that used a custom connector and off the shelf coolant hoses for low cost and serviceability.

Aside from the fuel economy this truck is just fantastic and checks so many boxes / so much utility that we really hope to keep it around for a while! I’m definitely planning on 4-5k mile OCI, which makes me think meeting the JLR spec which it seems was mainly for long OCI is frivolous in a way.
 
Escape08 said:
Jaguar and Land uses the same engine on their vehicles. Here, Jaguar owners talking about the oil you are referring to on this forum in which I am also a member
https://www.jaguarforums.com/forum/xk-xkr-x150-33/oil-wss-m2c945-vs-wss-m2c925-232555/
Click to expand...


Jaguar approved oil for $16 for 5qts - Jaguar Forums - Jaguar Enthusiasts Forum

XK / XKR ( X150 ) - Jaguar approved oil for $16 for 5qts - Very good Jag formally approved oil for the 5.0 engine is on sale for $16. Stock up while you can. (naturally I did before posting here) Its also excellent for flushing or double oil changes. Basically its the cheapest oil you can buy...
www.jaguarforums.com

this is linked to in the thread you posted and has more answers.
It also has this exact discussion I’m talking about penzoil ultra platinum vs the latest / best
 
BAJA_05 said:
You have been taking care of it all this time and not sure what oil to use???
Click to expand...
exclusively gone to the dealer for oil changes @$400 a pop currently.
I just ordered penzoil ultra platinum for $28 a gallon which will cost $65 for oil and filter.
 
You must log in or register to reply here.

Similar threads

O
  • Locked
Hypothetical 0w20 vs 5w20 vs 5w30 question
Replies
10
Views
730
M56959
RRJar
10’ Land Rover Range Rover - 5.0 V8 NA (143k) (4,306 Mile interval) (LM 0W-40)
Replies
3
Views
549
fantastic
RRJar
10’ Land Rover Range Rover - 5.0 V8 NA (138k) (5,382 Mile interval) (LM 0W-40)
Replies
4
Views
504
Brons2
RRJar
10’ Land Rover Range Rover - 5.0 V8 NA (133k) (4,720 Mile interval) (LM 0W-40)
Replies
7
Views
1K
RRJar
W
Is there a "best" oil for timing parts longevity in Ford's 2nd Gen Coyote?
2
Replies
23
Views
5K
zray1
Back
Top