Shell Spirax S6 ATF A668 oil is a fully synthetic, heavy-duty automatic transmission fluid which is specifically designed and approved for use in transmissions requiring Allison TES-668 fluids. Spirax S6 ATF A668 is approved for extended service intervals and remains stable even under severe operating conditions
Shell Spirax S6 ATF A668
Shell Spirax S6 ATF A668 is a fully synthetic, heavy-duty automatic transmission fluid designed specifically for Allison TES-668 approved transmissions. It features extended service intervals and excellent low-temperature properties suitable for municipal fleets, buses, and commercial trucks.



