Hello, a bit confused with all the talk about which anti freeze/coolant to use as some say one thing and the manual ( out dated by newer spec stuff? )says another. I have found this product and wondered if anyone in the U.K was using it and if it was O.K or there was a better product out there to use?
Manual states spec : WSS-M97B44-D which is listed below.
The anti freeze is Millers and is OAT class:

http://www.ebay.co.uk/itm/5L-MILLERS...-/160675487738

Performance Profile

-BS 6580: 1992
-ASTM: D3306, D4985
-SAE J: 1034
-NATO: S 759
-Cummins: 85T8-2, 90T8-4
-MAN: M248, M324 (SNF) & B&W, D 36 5600
-Mercedes-Benz: MB 325.3
-Renault: 41-01-001
-John Deere: H 24 B1 & C1
-Ford: ESE M97B49-A, WSS-M97B44-D & ESD M97 B49-A
-GM: 1899 M, US 6277 M & OPEL GM QL 130100
-VAG: TL 774D
Description

A high quality ethylene glycol antifreeze and coolant utilising OAT (organic acid technology). Red in appearance.
Application

To be used diluted with water for engine cooling systems in cars, vans, trucks, plant, buses and coaches with corrosion and frost protection. From 33% volume in water providing pumpability down to -20°C, to 50% volume in water providing pumpability down to -37°C
User Benefits

-The utilisation of OAT (organic acid technology) provides superior corrosion protection for long term use up to 300,000miles(500,000kms) or 5 years whichever occurs first. Protecting all metals in the cooling system from corrosion
-The product does not contain silicates, nitrates, amines, borates or phosphates, providing excellent stability and foam control preventing the build up of scale.
Any advice much appreciated. Left kicking my heals at the moment as my mechanic has a car stuck on his lift and is two days behind with his work load, don't know when I can get my car to him now?

Regards,

ArtyH

 

I've just been through pretty much exactly the same thing myself. I'm pretty new to this so if anyone more knowledgeable appears please feel free to correct! - Barring a new owner deciding to flush and refill with something else it appears XKs went through 3 stages of factory anti-freeze.

Early models had Blue/Green silicate based anti-freeze
Then there was an intermediary stage of using Yellow anti-freeze
And finally later models used Orange/Pink OAT based anti-freeze.

The usual advice states that mixing OAT based anti freeze with Silicate based anti freeze will result in a jelly like mixture and bad things all round. The only reliable way to tell what you're running on at the moment seems to be to dip some absorbent kitchen roll into the reservoir and see what colour comes out.

Mine appeared to be using the Yellow but I didn't have any luck finding out if the Yellow stuff jaguar used was Silicate or OAT based. Without wanting to drain the whole system to be on the safe side I decided on using Bluecol 'U' Universal antifreeze which is clear and can be mixed with anything.

 

I shall put this in very easy terms......... You want the orange stuff!!

 

This must be a U.K and U.S thing. In the U.K as far as I know there are just red and blue types available, but the spec for the red is the same as the book. The original question was, is there a better product with respect to the cars age ie most are over 10 now and there have been huge lmprovements in the field of coolants for engine protection. Think I will just go with the product in the link.
Cheers,
Arty

Update, purchased the product in the link.