20M Weight. This is the Differential Oil, 20M Weight, Standard for Traxxas. Part # 5040. Traxxas - 5040. (1) Container of Differential Oil. Differential Oil, 20M wt, Standard. Large Scale Servos. Power Supplies.
The Traxxas 1/6 XRT Ultimate Differential Oil, 20M wt, Standard, 5040 would be the best fit for high-performance, off-road modelers who want top-quality lubrication for their XRT Ultimate differentials.