hello
which transmission fluid is best for 2007 jaguar xj8l.
is amsoil ok to use.

ole

You have likely opened a thread that will have as many opinions as there are replies.

I can attest that all went well after to different XJ8 (2008, 2004) using Ravenol ATF 6HP. It appears, after doing some research, to be the actual OEM Lifegard 6 source, without the ZF inflated prices. I purchase mine in the 20l bag-in-a-box so I have enough for several changes, and the price-per-qt. is very, very good at 20l for an OEM-type fluid.

https://www.blauparts.com/ravenol-at...SABEgIyIvD_BwE

Used Ford Mercon SP in mine, the same stuff, but its red in color.
At a much better price than the OEM fluid

Good to know. Need to do a change soon and it seems the ZF Lifeguard 6 Fluid has suddenly become rare in the States. I see a lot of Lifeguard 8 still.

No question, Mercon SP, great price at Rockauto, $112 per case of 12 quarts. used it in my 2006 VDP and made a big difference.

Awesome to hear success with Mercon SP. Love this forum, thanks for posting guys.