Can I use this in my 2001 silverado 2500hd with an allison transmission?

Yes, I recommend flushing and filter (Both) try to remove as much of the Dino oil as possible. Transcend works wonderfully in my '01 and '05 Chev Allisons

I am trying to find the color of the fluid. Not able to find it on the product description. Any comments?

It's red. Just like the older version.

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🚀 Elevate Your Drive with Castrol TranSynd!

ANTI SHUDDER TECHNOLOGY - Say goodbye to shuddering with extended durability.
CLUTCH FRICTION MASTERY - Maximize performance with enhanced clutch-friction stability.
UNMATCHED GEAR PROTECTION - Experience superior gear longevity with advanced protection.
THERMAL STABILITY CHAMPION - Prevent deposits and oil thickening for a smoother ride.
CORROSION FOAMING RESISTANCE - Keep your system clean and efficient with top-tier resistance.

The Castrol TranSynd 668 is a high-performance transmission fluid designed for optimal gear protection and durability. With its advanced formulation, it offers exceptional resistance to corrosion and foaming, ensuring a smooth and efficient operation. Ideal for professional use, this 1-gallon product is engineered to meet the latest specifications for Allison transmissions, making it a must-have for any serious automotive enthusiast.

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TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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Brand	Castrol
Package Information	Bottle
Liquid Volume	1 Gallons
Recommended Uses For Product	Automotive
Item Form	Liquid
Unit Count	128.0 Fluid Ounces
UPC	079191219164
Number of Items	1
Item Weight	7.5 pounds
Package Dimensions	11.73 x 9.57 x 4.76 inches
Manufacturer Part Number	TES 668

merchant-automotive Castrol TranSynd 668 Allison 2021 Updated SPEC 1 Gallon ONLY by DOXA Worldwide

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