Has anyone used Castrol edge extended performance oil ? I'm having a hard time finding the Castrol edge professional 0w20

 

Tiggernlizzy, I have been using that in my XJ's since I have owned them. I have had a 5.0L XJ that I used that oil for over 5 years with no engine issues and am currently just over a year on my 3.0L using that oil with no issues. Please keep in mind that you will not be able to go the recommended 15,000/20,000 miles on this oil. I change my oil at 7,500 miles.

 

You can use Liqui Moly 6600 0w20. It has all the latest api and JLR specs

 

I'm using Motul Specific 5122 0w20.

wombat

 

I use Mobil 1 ESP X2-0W-20. It also meets Jaguar's specifications.
Listen to Thermo about the oil change interval too!
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I have been purchasing my spec Castrol Edge Professional 0W-20 from Atlantic British Ltd. 800-533-2210 and having it delivered to my home.

I always appreciated this education on why you should only use oil that meets STJLR51.5122 (0w-20), the JLR specification:
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.