The tranny is sealed at the factory for life, you would need to purchase a "Special Service Dipstick Tool" (part #8863) and a funnel (part #8908) if you need to fill the tranny. This info was taken from the "Crossfire Training Reference Manual" and can be found on pg. 195. The NAG-1 automatic transmission takes 10.57 qts. (10 liters) and uses MS-9602 ATF+4 Automatic Transmission Fluid.