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⚙️ Drive smarter, not harder — the future of transmission fluid is here!
Castrol TranSynd 668 is a premium full-synthetic automatic transmission fluid designed exclusively for ALLISON transmissions. It offers extended drain intervals up to 300,000 miles in general-duty use, exceptional shear stability to protect gears, and enhanced anti-shudder and clutch-friction durability, making it a top-rated choice for professionals seeking maximum transmission longevity and performance.




| ASIN | B0977Q8S49 |
| Best Sellers Rank | #14,216 in Automotive ( See Top 100 in Automotive ) #47 in Transmission Fluids |
| Brand Name | Castrol |
| Container Type | Pail |
| Customer Reviews | 4.8 4.8 out of 5 stars (331) |
| Global Trade Identification Number | 00079191219638 |
| Included Components | Transmission Fluid |
| Item Form | Liquid |
| Item Weight | 38 Pounds |
| Liquid Volume | 640 Fluid Ounces |
| Manufacturer | Castrol |
| Material | Synthetic |
| Model Number | 15E2E0 |
| Number of Items | 1 |
| Part Number | 15E2E0 |
| Recommended Uses For Product | Automotive |
| SAE J300 Viscosity Grade | 5W-40 |
| Specific Uses For Product | Specific vehicle and transmission types, enhancing performance and longevity |
| UPC | 079191219638 |
| Unit Count | 640.0 Fluid Ounces |
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