What both of you are doing here, is discounting the proven advantages and advances in technology, by discounting it with the false assertion that these are not in fact any better, and only the imagined hype driven by profit factors. How much effort have you placed in contacting the Zone rep in your area, in order to gain insight to Jaguar's stance on these positions you are taking?

 

You're now saying something false about me. Please don't, it's not a way to behave.

 

Comments like this, to anyone who has even the most basic knowledge of lubricants, knows this is a blatantly false assertion.

 

You're the one who asserted "There was/is, and money does make some claims suspect at best."

Let me say this again, what both of you are doing here, is discounting the proven advantages and advances in technology, by discounting it with the false assertion that these are not in fact any better, and only the imagined hype driven by profit factors.

 

I have not said that. Show me where I did.

 

Were you not with yourself when you posted? (I do realize some folks may have issues with short term memory) I quoted your post and the link to your post is at the header. Either you're putting me on, someone else has hacked your account, and posting as you, or you're simply in denial.

 

You've ignored the rest of your claim, which does not match what I said.

All the time you are (deliberately I guess) missing the point that Jaguar did not recommend synthetic oil.

They could have changed that when they reissued various S-Type items such as the Spec. one, but they didn't. They reissued that one several times but never went to synthetic.

So, synthetic cannot be required. If you love it, use it. I'm happy to use it if I feel like it or not if I don't but in all cases I do stick to the Jaguar specification because I prefer to do that.

Trying to prove your choice of oil is better than someone else's that meets the Jag spec is pointless.

Now, if you have believable data that the AJV8 in my car has been tested with your wonder oil to last significantly longer then I'd like to see that data. Do you have such data?

 

Then it would be quite simple to come up with some (any) proof. I've clearly asked for this on umpteen occasions, being unable to find any myself, yet none is forthcoming.

But, I repeat myself.

 

The key, as I wrote in a post about Jaguar oil recommendations is to
consider the oil recommendations given by Jaguar for ROW (rest of world)
markets.

What you will find is that except for NA markets, Jaguar recommends
what many would consider to be "better" oil in terms of specification
if not reality.

Unless someone is prepared to argue that the engines are physically
different, this is a disservice to owners.

I speculate in that post that the reason boils down to the requirements
of CAFE fuel economy ratings and the specific regulatory requirements
of what the manufacture must say in the owners manual.

 

To make sure you get an answer in all the noise, I would say yes, those are correct.

Note that in the US you have to look at the bottle very carefully. It must agree with
the specifications you found on the application page. Castrol and many other brands
use their names interchangably around the world to market different oils in different
markets.

The current European made Castrol will say "Made in Belgium" on the back label.

The stuff made in NJ is not the same.

To determine interchange, you must look at the technical specification on the
back label and not marketing claims or other fluff.

I know from reading the spec that one oil that meets the same levels and is
easily obtainable in your neck of the woods is the Pennzoil Ultra Platinum
mentioned by Box.

ps. i see Box did answer you ... but since i've already typed this out, i'll let it stand

 

That is what ASTM D4172 is all about. In fact, Castrol GTX is one of the lowest performing oils and left the largest scarring compared to numerous conventional, and certainly lowest of the bunch compared to anything that is semi-synthetic or full synthetic.

 

And yet it was factory fill on every S-type produced. Why would Jag do such a silly thing- and why would they enter a marketing scheme with a company with obviously inferior products?

I see you're still dodging the question about producing any field data to support your claims.

 

Go play your circular argument with someone else. Again, contact your local dealer and get the contact information for your local Jaguar Zone rep, contact them and get their answer to their current recommendations. As I understand the initial fill at the factory for 2003 vehicles was in fact in specifications from JTIS, details follow: Engine oil (EUROPE), SAE 5W-30 WSS-M2C-913-A which is semi-synthetic. In 2004, the spec changed to WSS-M2C-913-B.

 

That's only half what JTIS says. Let's not play that game. Here's the full wording of the spec:

Engine oil (EUROPE), SAE 5W-30W SS-M2C-913A
Engine oil (US), SAE 5W-30 ILSAC GF3, API SJ

That's why dealers from the day of delivery and still to this day service S-types with GTX if the customer elects to follow the owners manual and not get upsold on something that has no apparent benefit.

So- any luck finding field data to support your claims? You would get me to cease and desist if you did.

 

I think what you will find, is that bulk initial fill was in fact WSS-M2C-913-A.

 

Let me throw some gas on the fire:

This speaks directly to viscosity.

 

The full wording of the spec can be found in the first post of the
following thread which reproduces the Jaguar Specification booklet.

https://www.jaguarforums.com/forum/x...idance-157906/

ACEA is clearly part of the ROW spec despite the fact that
it may be inconvenient for some to include it their posts. In fact, we can
see that the SC models increase the required rating from A2 to A3, and
then A3 is adopted for all models in later years.

Willful blindness is neither truthful or ethical.

 

Hi Dudes08 ,

I do a lot of country driving , Iv'e have done about 6 or 7 oil changes in the two years since I bought my XJ8 4.2 , I use a not so popular brand of oil called Gulf Western .
The first trip I did was about 2,000km ( 1,240 mls ) return . I used the 15w40 non synthetic standard run of the mill oil , car went well , didn't blow any smoke checked oil level when returned and found that it used little to no oil .

Second trip I used the 10w30 Semi synthetic oil , same distance , with same end results
Third trip I used the 5w40 Full synthetic oil , again , with the exact same results
Now on the fourth trip I decided to use MOBIL 1 EP 5W30 advanced full synthetic

Here are the results of the 4th trip........ , exactly the same as on trip 1 , 2 and 3 ,
So in the end , I guess all the oils performed no worse or better than each other

The slight tapping / lifter noise when cold that I have , was present with all grades and types of oils used , those trips were all made to the same destination with new oil filters fitted each time .

As far as oil filters go I use the genuine Jag supplied filter

I don't think the brand matters , but more the car makers specifications .

Cheers ,

 

Absolutely. But stand by for a warning from moderators for getting personal.

 

For accuracy, that first post does not quite match the Jaguar Spec booklets I have (07/2004 and 09/2009), as regards S-Types. Nothing very different but just wanted to put the actual wording for ROW:
API SJ/EC and ACEA A1 or A3
Jaguar WSS-M2C913-B preferred
Note: The use of supplementary oil or fuel additives is not approved unless specified by Jaguar Cars in the form of a service communication or directive.

(I've omitted the diesel's EUR spec and NAS)