Joshnosrt6. A lot of those coupons have hidden agendas. XF takes 8-81/2 quarts according to who you believe. I use 8 1/2. Dealers usually only give you 5. Same goes on filters etc. But you really don't have a front diff. And if you do hang on to that 1 of a kind. It's priceless like some of the characters on here.