You can try to order those Mazda fluids online. You can also avoid expensive shipping charges by ordering more than $100 from our sponsor Mad Center Mazda with some additional OEM maintenance parts. Personally I definitely would use Mazda Genuine ATF FZ as you're mixing at least half of the old ATF with your new fluid by drain-and-fill and you want the new and old fluid totally compatible. Mazda also specifies new Mazda Long Life Hypoid Gear Oil SG1 for front transfer case and rear differential. Be watchful that you need more than 1 quart total for both front transfer case and rear differential as the spec of capacity for rear differential is too low at 0.48 quart.