







⚙️ Shift Smarter, Drive Stronger — The ATF That Means Business
Red Line 30505 D4 Synthetic Automatic Transmission Fluid is a premium 1-gallon liquid engineered for superior gear and synchro protection with GL-4 level performance. It ensures smooth shifting in cold climates and is compatible with a wide range of automatic and manual transmissions, including those from Toyota, Honda, Nissan, BMW, and Audi/VW. Trusted since 1979, this versatile ATF meets or exceeds Dexron III, Mercon, and other industry standards, making it the go-to choice for professionals seeking reliability and longevity in their vehicle’s transmission system.






| Brand | Red Line |
| Package Information | Bottle |
| Liquid Volume | 128 Fluid Ounces |
| Item Weight | 7 Pounds |
| Recommended Uses For Product | Transmission Fluid |
| Specific Uses For Product | Automatic and manual transmissions and power steering in various vehicle makes including Toyota, Honda, Nissan, Mazda, BMW, and Audi/VW |
| Item Form | Liquid |
| Global Trade Identification Number | 00083522305051 |
| Manufacturer | Red Line |
| Unit Count | 128.0 Fluid Ounces |
| UPC | 083522305051 |
| Number of Items | 1 |
| Model | 30505 |
| Item Weight | 7 pounds |
| Product Dimensions | 7.5 x 4 x 11.25 inches |
| Country of Origin | USA |
| Item model number | 30505 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 30505 |
| OEM Part Number | 30505 |
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