Commercial ATF
Delo® Syn ATF 668
Delo® Syn ATF 668 is a premium performance fully synthetic long-drain transmission fluid specifically engineered for Allison heavy-duty automatic truck and bus transmissions.
Delo® Syn ATF 668 is manufactured from synthetic base oils and additives that is designed to offer oxidation and thermal stability, friction control, load-carrying ability, corrosion and wear protection.
Delo® Syn ATF 668 helps prevent the accumulation of deposits and the formation of sludge, varnish, and foam. It has robust low-temperature flow properties and enhanced protection against viscosity breakdown.
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*Our Product Data Sheets (PDS) contain product information including features, benefits, applications, typical key properties and service considerations. PDSs are produced regionally based on the best available information at the time of issue. For each product, there is one PDS for the Asia Pacific region. The specific information included in each PDS may not directly reflect the Australian market or Australian conditions. In the event of any inconsistency between this webpage and the applicable PDS, this webpage prevails. For the most up-to-date, Australian-specific information contact us. Please note that, by clicking the PDS link, you will be leaving the Caltex Australia website.
- Designed for extended anti-shudder durability more than 10 times longer than TES 295 fluids, offering smooth performance even as the fluid ages.
- Offers extended clutch friction durability for consistent, smooth gear changes across varying temperatures and loads.
- Long fluid life formulation offers excellent antioxidation performance and shear stability.
- Formulated for long transmission service life promoting gear, bearing and clutch protection.
- Wide temperature viscosity performance offers fast circulation and efficient power transfer under demanding conditions.
- Helps provide low-temperature component protection in cold weather start-ups.
- Consistent smooth operation for over 10 times longer than TES 295 fluids.
- Helps extend clutch friction durability.
- Promotes anti-oxidation and shear stability.
- Formulated for long transmission service life.
- Offers fast circulation and efficient power transfer.
- Helps provide cold start-up protection.
Delo® Syn ATF 668 is designed for severe duty and extended drain intervals. It is approved for on-highway and vocational Allison transmissions that call for an Allison TES 668TM fluid.
Allison TES 668 is the next-generation standard that builds on the requirements of TES 295®, meeting the needs of current and future Allison transmission applications. Allison recommends that customers begin using this type of fluid.
Allison TES 668 fluids are backwards compatible for transmissions where the operating manual specifies the use of an Allison TES 295 or Allison TES 389TM approved fluid. TES 668™ fluids are also recommended for H 40/50 EP™ series parallel hybrid transmissions - Allison recommends that customers currently using a TES 468™ approved fluid in these transmission types should begin using a TES 668™ fluid for their next service.
- All 1000/2000, 3000, and 4000 series transmissions where TES 295 is specified for extended drain intervals.
- All 1000/2000, 3000, and 4000 series transmissions where TES 389 is specified (Delo® Syn ATF 668 will provide improved oil drain and filter change intervals).
- All H 40/50 EP™ series parallel hybrid transmissions where TES 468™ is specified.
- Next generation of Allison transmissions that specify TES 668 fluids.
Delo® Syn ATF 668 meets the needs, terms of warranty and policies of Allison Extended Transmission Coverages (ETC) with the following features:
- It provides the same oil change/drain intervals as TES 295 fluids.
- It has the same prognostic settings as TES 295 fluids.
- It is recommended for the same oil temperature operating range as TES 295 fluids.
- It will not affect the transmission oil cooling, oil levels, calibrations, or any other aspects of the transmission installation.
Delo® Difference
Delo has been delivering end-to-end protection for over 80 years. ISOSYN® Technology is why Delo products provide reliable protection to critical engine parts.