Since my car is out of warranty, I would like to have recommendations on oil type and filter. I want to inquire to local shops for service. Thanks

 

do a search many opinions in the forum

 

Jjdejd, the oil is very specific to the x351 Jaguar engine and developed for it. Pay attention to what these forum threads tell you and adhere to the JLR specification. There are only 3 or 4 brands that meet the spec. You will, of course, be tempted to use any 0W-20 weight oil but you should not. That engine needs the properties of the STJLR. 51.5122 and the latest STJLR..03.5006 spec oil. You should look for these specifications on the back of the bottle.

 

Not quite right Freddy, the oil spec is specific to the AJ133 (V8) and AJ126 (V6) engines (same spec for both) which have been fitted to a wide range of Jags, Range Rovers and Land Rovers and not just X351 XJs.
I also suggest that not only should you look for oil with the correct JLR spec but the oil should preferably also meet ILSAC GF-6A spec. GF5 is OK but 6A is better for these engines.

 

I’ve found two brands that match the specs. Eurol and Liqui Moly. Anyone familiar with these brands.

 

Yes.
As someone said above, if you take a little time and effort to look for and read existing posts about it, you'll find many with questions, answers and details.
You're not the first to get that idea, and it's been discussed much with questions, answers and details.

 

I buy the Jag LR Liqui Moly oil change kit from FCP Euro. Liqui Moly is one of the few oils available that has the Jag LR Spec. I also have a oil evacuation pump from Harbor Freight. I can do an oil change in my driveway in 25 minutes.

 

Yes, that tool is an important one, to change the oil, in a late model Jaguar.

 

The oil filter socket wrench, cabin and air filters are available on Amazon.

 

I found Castrol Edge sae ow-20. Rear label states ILSAC GF-6. I know 6A is for 0w-20 and 6B is for a different viscosity. When I go to Castrols site and search for my car using Edge, it says no product available. Also, clicked on a few other Jaguar models and got the same result. Don’t get it?

 

I could only ever find the correct Castrol stuff at the Jaguar dealer? There are a LOT of different Castrol Edge products too.
I found out pretty much what you did.

I currently use a Mobil 1 product that does meet the specs (STLR 51.5122.).
Strange Green Oil

Still available mail order too from Amazon.

.
.
.

 

Castrol made an agreement with Jaguar Land Rover that the Jag LR spec oil would only be sold through Jag LR dealerships. It is not available to the retail public. The only Jag LR spec oil I have found available to retail is Liqui Moly 0-20W. I buy through FCP Euro. Not cheap, but its the real deal.

 

I use Pennzoil Ultra Platinum 0W20 in my 2012 XF 5.0L. I have used since I bought the car mostly because it is very good oil, has been readily available in Canada(manufactured in Alberta), is very inexpensive when there are sales and manufacturers incentives. I have a 7 years supply in my garage at an average cost of $25 CAN per 5L container There is lots of information on this topic of engine oils in the XK150 Forum

 

Rock Auto also sells the Liqui Moly Special Tec LR 0w20 for $51.79/5-liter jug, but it's not found under the Jaguar XJ choices since they only list 5w20 options (all Valvoline?) because that was the original spec'd weight before Jaguar changed it to 0w20.
To find it on Rock Auto, it can be found by a part number search for Liqui Moly products; or by going to the tools & universal parts tab, then engine, then oils, then 0w-20, then under the synthetic options for 0w20.

 

 

Just as well my garage is heated!

 

how do we feel about this Prime Day deal for Castrol Edge <$20

 

I haven't found a single cogent argument to use the Jaguar spec oil other than "Jaguar says so". That argument isn't good enough for me. Show me proof that the Jaguar spec oil is REQUIRED for long life. I am of the educated opinion that correct weight, use of synthetic base oil and appropriate oil change intervals are more critical to engine life than anything else. I use the cheapest 5W-20 synthetic I can find and just change it every 6K miles. I don't beat on the car before it's warmed up, I always change the oil hot and always drain through the pan, not the vacuum port (I don't own a vac kit large enough).

The AJ V8 was assembled by the same teams who slapped together other Ford motors and I can guarantee you they didn't undergo any kind of rigorous training to handle that task. Do you really think these mass produced engines are so "different" that they require a specific type of oil that is, suspiciously, either ONLY available through dealers or more expensive than unicorn p!ss? It's another way for luxury brands to separate you from your money, plain and simple. Engineers haven't been allowed to call the shots at automotive companies since before the Challenger exploded. Except in the case of the E60 BMW M5 (those V10 engines were assembled to motorsport tolerances so they actually ARE sensitive to oil choice), and we all know how that went.

If you ever have a question about why businesses do ANYTHING, just follow the money.

 

There is a number of Castrol Edge products too so that adds to the confusion.
Note the oil you linked does NOT meet Jaguar's spec! Look at the rear label on the bottle to check.

Here is the Mobil 1 oil I use;





I agree with jaaag_drivah that Jaguar has NOT proven their case that the engine will be destroyed if the wrong oil is used. BUT so far I have stayed with oils that do meet JLR spec's. Also note that Jaguar now specifies 0W-20 NOT the original 5W-20 oil. So things did change with time.
.
.
.

 

Jaaag_drivah, here's the explanation I always liked to refer to on why you should only use Castrol Edge that meets STJLR51.5122 (0w-20):

Posted by Member “Queen and Country” from the UK on the F-Type Forum 02-22-2019

Jaguar has a Patent on the cam mechanism that not a lot of folks know about. It even licenses this technology to Ford.
https://patents.google.com/patent/US7841310B2/en
Basically, if you open an engine from a regular car or even previous Jaguars, you will find that oil naturally cooks on to many surfaces. But it does not matter. These engines are fairly low tech when it comes to oil.

Your Jaguar engine gets amazing performance (low end torque) by doing things with oil that no other manufacturer does.
It’s like a Swiss watch of delicate parts. The patent above is for a small pin that slides in and out. Oil moves this pin. No other engine in the world other than JLR and Ford have it.
What do you think will happen if you use oil that cooks quickly (becomes coke). Where after you turn the engine off you have heat soak.

Your engine is not built the same as other engines.
In addition to the usual lubrication and cooling, it also needs 3 things from the oil.
1. Good cleaning abilities
2. Ability to clean after long term use.
3. Not leave too much deposit.

Also posted by Q and C

“I can explain it in a simple way.
In other cars oil is used for lubrication, cleaning and cooling only.
In our cars it’s also used for controlling the timing of the engine.”

Lastly, in the owner’s manual it reads “Castrol is "recommended" oil. WSS-m2c925A or STJLR51.5122 is the REQUIRED spec oil.