When refueling the T-54A, which tanks should be filled first?

When refueling the T-54A, the auxiliary tanks should be filled first to optimize the vehicle's weight distribution and balance. Filling these tanks first allows for better management of fuel load and ensures that the main tanks remain ready for use when needed. This approach also helps maintain the center of gravity, contributing to improved vehicle stability and performance during operation.

Filling auxiliary tanks before the main tanks allows for a more efficient use of space and resources, as auxiliary tanks are often designed to support extended missions without directly impacting the primary fuel availability of the main tanks. This method ensures that the vehicle can sustain longer operational capabilities without the risk of running out of accessible fuel in the main tanks.

Other options, while legitimate in different contexts, do not provide the same benefits in terms of operational readiness and efficiency specific to the T-54A during refueling.