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⚙️ Shift smarter, not harder — the synthetic edge your transmission deserves!
Red Line 30504 D4 Synthetic ATF offers unmatched low-temperature shiftability and high thermal stability, protecting gears and synchros in both automatic and manual transmissions. Compatible with a wide range of OEM specs including Dexron III, Mercon V, and BMW, it ensures smooth, consistent shifts and extended drain intervals, making it a top choice for performance and longevity since 1979.






| ASIN | B000CPI5XM |
| Best Sellers Rank | #6,542 in Automotive ( See Top 100 in Automotive ) #7 in Automotive Transmission Fluids |
| Brand | Red Line |
| Brand Name | Red Line |
| Container Type | Bottle |
| Country of Origin | USA |
| Customer Reviews | 4.8 out of 5 stars 1,045 Reviews |
| Global Trade Identification Number | 00083522305044 |
| Item Form | Oil |
| Item Weight | 1.7 Pounds |
| Item weight | 1.7 Pounds |
| Liquid Volume | 0.95 Liters |
| Liquid volume | 0.95 Liters |
| Manufacturer | Red Line |
| Material | Synthetic |
| Model Number | RED30504 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Package information | Bottle |
| Part Interchange Info | 30504 |
| Part Number | 30504 |
| Recommended Uses For Product | For use in automatic and manual transmissions, power steering, racing transmissions |
| Recommended uses for product | For use in automatic and manual transmissions, power steering, racing transmissions |
| SAE J300 Viscosity Grade | 5W |
| Specific Uses For Product | Automatic and Manual Transmissions, Power Steering |
| UPC | 083522305044 |
| Unit Count | 1 Count |
| Viscosity | 5w |
L**P
Excellent produit !
Très bon produit, j'utilise ce produit exclusivement pour ma Corvette C6 depuis longtemps !
G**Y
Good
Matches 955 Cayenne transfer case fluid specs.
A**W
Super
Ich bin begeistert was der getriebeöl redline d4 atf leistet. Die Schalt Vorgänge sind deutlich weicher und sanfter geworden demnächst werden ich komplette öl Wechsel vornehmen. Tolle Arbeit an die amerikanische öl Industrie
F**L
Four Stars
Great for my Hurth gearboxes on my boat.
L**O
Easier shifting
Works great in my BMW Z3, only need 1 quart.
Trustpilot
5 days ago
2 months ago