Arrowmax AM-212027 silicone differential fluid is a practical 2.500cst option for hobbyists setting up their rigs. The 59ml pack is sized for regular maintenance and small workshop use.
This viscosity offers a compromise between free-diff behaviour and locked response, improving stability on loose surfaces while still allowing steering adjustability. It is useful for both off-road practice and mixed-surface sessions.
Service by draining the old fluid, cleaning internals, and refilling to the correct level. Proper sealing and clean work prevent contaminants from shortening component life.
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