I know this is an old topic, but worth updating. There is strong evidence that the is the correct fluid for the six speed auto box fitted to later cars (Jaguar part number C2S5162, but that the older 5-speed JATCO box needs a different fluid. Jaguar specify Ford spec WSS-M2C922-A1 which is RED in colour.

UK owners can obtain the latter fluid from the online Ravenol UK shop as 'Ravenol JF506E' fluid and it is specifically specced for the older X-Type, and reasonably priced at <£9.99 a litre. Ravenol are well known in motor racing circles and are a German company.

RAVENOL UK Ltd.


Search for 'ATF JF506E'

You will see from the spec that it conforms to Jaguar part number C2S12120


The amount of oil which will drain is maxed at about 5 litres, in fact I find mine only drops three litres and has to be left overnight before the extra 2 litres run out. Nevertheless proper fluid change done by a professional transmission specialist will use a machine which effectively removes all the old oil.

Hope this helps somebody...

 

Thank you. It appears to be available in America as well, for $9.99/liter.

http://http://www.ravenolamerica.com/transmission-fluid/automatic-transmission-fluid-atf/atf-fluid-ravenol-jf506e-fluid/

Look at this! JF506e right on the bottle! How can you go wrong!