Not trying to start the "dreaded oil thread" but I need to change my oil - doing it myself this time. 05 S Type 115,000 miles 4.2L V8 NA - No leaks, weeps, burning etc., always run on 5w30 semi synthetic.

Is it time to switch to a "high mileage" oil?

How long can one continue to reuse the oil drain plug gasket? I understand it is a "rubber" gasket and I do not recall ever being charged for a new gasket. Who knows - it might have been replaced with a typical crush washer at some time but the PO and my records indicate it has always been serviced at a reputable establishment.

Anyone know the torque specs on the drain plug and oil filter?

 

If you want to replace the drain plug, which comes with a new seal, the part number is JZH100062. The seal is available as a separate service part: NCE1850AB.

Refer to the X202 Workshop Manual for procedures and torques specifications.

 

High mileage? Had to laugh. I've got 327k+ miles on my 02 V6...

 

If the engine is not burning oil, or exhibiting any negative symptoms, why change your oil type to a "high mileage" formulation? 115K miles is not particularly high mileage on an adequately maintained modern Jaguar engine...

 

An old American? saying comes to mind.
If it ain't broken, don't fix it!
I would continue on the oil you use. As a matter of fact, some years ago, FORD changed oil (pun intended) their recommendations from a higher viscosity to a 0. They are most likely doing that to make sure the furthest parts of the engine gets oil as fast as possible, so a thin oil,
And I agree, 100000 miles on an engine well looked after is not what it used to be.
As a complete aside, I am always very surprised when I look at my Jaguar engines, and see how clean and fresh they look inside. Other engines in my cars are often dirty and crusted and black inside when filling oil. The Jaguar engines have a lot of my respect, compared to anything I have seen!

 

+1

The recommendation is to replace the oil seal every time. A rubber seal is not considered re-useable.




Graham

 

From internet search................

High-mileage oils have ingredients to take care of older engines, like conditioners, seal swells, antioxidants, detergents and wear or friction additives. ... The higher-mileage oils are formulated with seal conditioners that increase flexibility and restore shape, which can help prevent leaks in the long run

 

This subject is pertinent to my interests. I have the same engine on my XKR, the supercharged 4.2 V8. I have an oil change due now in July. On my last oil change I used Liqui-Moly 5W-40 Premium Synthoil. I briefly considered using their oil again but was put off by the price. A gallon of the same stuff I used is at $41.99, and the Liqui-Moly 5w-40 Molygen Synthetic I was considering costs $53.98 per gallon. I can get Pennzoil Platinum Fully Synthetic or Pennzoil Platinum High Mileage Synthetic 5W-30 at $22.68 at Walmart Autozone has it for about $34 for the 5-qt jug.

My XKR has 74,500 miles, it burns no oil, however, it has sprung a small oil leak at the front, I assume front left side timing cover gasket. The leak seems to be coming from nearby the power steering pump (I don't have a power steering fluid leak, I checked and the level has not changed). When I changed the valve cover gaskets, the engine looked remarkably clean. I am not looking forward to changing the timing cover gaskets and crankshaft seal because all the accessories and radiator have to come out for this job. I was thinking that perhaps high mileage oil could reduce my leak. They claim to condition and renew seals and owners anecdotes seem to back this claim for other brands.

I am on the fence of making this switch, or if it would be a bad idea and I am better off biting the bullet and replacing all the gaskets. The leak is not too bad, but I do have to top it off every 6 months or 2500 miles or so because by then it has lost about half a quart.

 

The main thing to consider when comparing brands and oil prices is does it meet Jaguar's specification. For instance: WSS M2C913-C or WSS M2C946-A, or whatever is relevant to the vehicle.