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Shell Spirax S6 ATF A668 Transmission Oil - 5 Gallon Pail

SKU 550032647

Original Price $286.24 - Original Price $286.24
Original Price
$286.24
$286.24 - $286.24
Current Price $286.24

Shell Spirax S6 ATF A668 Oil 5 gallon pail is a fully synthetic, heavy-duty automatic transmission fluid which is specifically designed and approved for use in transmissions requiring Allison TES-295 fluids. Spirax S6 ATF A668 is approved for extended service intervals and remains stable even under severe operating

Frequently asked questions

Find answers to common questions about our products and services
  • This is a heavy-duty automatic transmission fluid specifically formulated for demanding transmission applications with strict fluid specification requirements. Review the Technical Data Sheet to confirm compatibility with your specific transmission model before use.

  • Fully synthetic formulations offer significantly greater resistance to thermal breakdown and oxidation compared to conventional mineral-based fluids. This enhanced stability allows the fluid to maintain consistent performance and protection even under severe operating conditions.

  • Yes, this transmission oil is approved for extended service intervals. For fleet and heavy-duty applications, this means fewer scheduled fluid changes, reduced downtime, and lower overall maintenance costs — confirm the specific drain interval recommendations on the Technical Data Sheet.

  • Yes, this fluid is formulated to remain stable even under severe operating conditions, making it appropriate for heavy-duty equipment that operates in high-stress or high-temperature environments.

  • A 5-gallon pail is well-suited for fleet maintenance operations or workshops performing regular transmission services on heavy-duty equipment, offering a practical bulk quantity over smaller retail packaging. The exact number of services it covers will depend on the fluid capacity of the specific transmission being serviced.

Key Features

  • Fully synthetic, heavy-duty automatic transmission fluid engineered for demanding applications

  • Specifically designed and approved for use in transmissions requiring Allison TES-295 fluids

  • Approved for extended service intervals, reducing maintenance frequency and downtime

  • Remains stable even under severe operating conditions for consistent, reliable performance

  • Available in a 5-gallon pail for convenient handling and storage