Well my 2015 XJL 3.0 is ready for it's second oil change. The dealer did the first one free, BTW, the dealers receipt showed 8 qts of Castrol Edge 5W20 SY at $7.21, interesting. Well, I know that the owners manual calls for a 0W20 jag spec oil which is impossible to find so I've been looking all over for the Castrol Edge Pro OE 5W20 with the Ford WSS M2C925-A compliance which is nearly impossible to find. I read a lot of info in the forum about various opinions about different oil substitutes as well as some claims that Mobil 1 was a good chose. Well, I found a Mobil web site that clearly and specifically states that Mobil 1 is Ford WSS M2C925-A compliant. Here is the web link.

MOBIL 1 5W-20 | Mobil

It's available from Walmart for $22.88 for 5 qts.

Incidentally, the Castrol Edge Pro OE 5W20 I did find at the dealer was $128.00 for 8 qts. It makes me wonder what kind of oil the dealer used for my free oil change that cost only $7.21. I'm going to use Mobil 1 for the second oil change.