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⚙️ Keep your transmission running like new—longer, stronger, smarter.
TranSynd 668 is a premium full-synthetic automatic transmission fluid tailored for ALLISON transmissions, offering up to 300,000 miles or 48 months of extended drain intervals. Its advanced shear stability and enhanced anti-shudder properties deliver superior gear and clutch protection, outperforming conventional fluids by 12 times in longevity and durability.




| ASIN | B0977Q8S49 |
| ASIN | B0977Q8S49 |
| Best Sellers Rank | #14,160 in Automotive ( See Top 100 in Automotive ) #50 in Transmission Fluids |
| Brand Name | Castrol |
| Container Type | Pail |
| Customer Reviews | 4.8 4.8 out of 5 stars (321) |
| Global Trade Identification Number | 00079191219638 |
| Included Components | Transmission Fluid |
| Item Form | Liquid |
| Item Type Name | Full Synthetic Transmission Fluid |
| Item Weight | 38 Pounds |
| Item model number | 15E2E0 |
| Liquid Volume | 640 Fluid Ounces |
| Manufacturer | Castrol |
| Manufacturer | Castrol |
| Material | Synthetic |
| Model Number | 15E2E0 |
| Number of Items | 1 |
| Package Dimensions | 16 x 12.25 x 12.25 inches; 38 Pounds |
| 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 |
| UPC | 079191219638 |
| Unit Count | 640.0 Fluid Ounces |
| Warranty Description | 3 months |
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