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Description
Red Line D6 Automatic Transmission Fluid 30704Synthetic D6 Automatic Transmission Fluid is suitable for use in the new Dexron VI applications, Mercon SP, or Toyota WS fluids are recommended. The D6 Automatic Transmission Fluid is a lower viscosity version of the D4Automatic Transmission Fluid and is designed for better fuel efficiency in CAFE testing. Dexron VI requires a different approach to conventional Automatic Transmission Fluid formulation. Rather than beginning with a 7. 5 Centistokes
Synthetic D6 Automatic Transmission Fluid is suitable for use in the new Dexron® VI applications, Mercon® SP, or Toyota WS fluids are recommended. The D6 Automatic Transmission Fluid is a lower viscosity version of the D4Automatic Transmission Fluid and is designed for better fuel efficiency in CAFE testing. Dexron® VI requires a different approach to conventional Automatic Transmission Fluid formulation. Rather than beginning with a 7.5 Centistokes fluid and allowing a viscosity loss in use to drop to 5.5 Centistokes, the Dexron® VI fluid requires a starting viscosity of less than 6.4 and a final drop to no less than 5.5 Centistokes. Red Line D6 will drop to no less than 6.1 Centistokes. Since the final viscosity after use of these fluids are similar, Dexron® VI fluids can be used where Dexron® III fluids were previously recommended. The D6 Automatic Transmission Fluid also provides significantly improved gear protection and will provide a GL4 level of gear protection, making it a superior product for transmissions and transaxles. The balanced frictional characteristics provides smooth and consistent shifts for extended drain intervals. The superior stability compared to petroleum Automatic Transmission Fluids allows high temperature operation without varnishing valves and clutches which leads to transmission failure.
Compatibility: Dexron VI, Dexron III, Mercon SP And Mercon LV
Recommended Use: Performance
Type: Synthetic
Unit Size: 1 Quart
Unit Type: Bottle
Features
- Our Lowest Viscosity, Most Shear Stable Automatic Transmission Fluid For Consistent Operation
- Red Line Offers The Widest Selection Of Fully Synthetic Automatic Transmission Fluid On The Market Today
- Each Offer Improved Thermal Stability, Maintain Viscosity Levels, And Feature Lower Volatility While Providing The Required Frictional Characteristics Of Each Fluid's OEM Style Replacement
- Reduced Oxidation And Lower Volatility At High Temperature
- Allows High Temperature Operation Without Varnishing Valves And Clutches
- Extended Drain Intervals
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 2
Great shoe, horrible lace design.
Size: 13, Color: White, Size: 13, Color: White
This shoes look great and the materials for the actual shoe feel great. They run a little big that doesn't bother me. Unfortunately, the lace design is horrible. I've now have 2 pairs of these shoes and both times the bottom lace has ripped out of the stitching. The first time was on the 2nd day I wore them, and the replacement pair to those it happened after I walked 20 feet. Both times I've tied a knot in the bottom lace so that I could get through the day. Ideally these laces should be connected together and not attached to the shoe (this is how both of my Skechers Slip-ins are designed). Because I like the rest of the shoe so much I'm buying elastic laces to replace the horrible original laces.
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Reviewed in the United States on March 14, 2025
★★★★★ 5
Good value for the money.
Size: 9.5 Wide, Color: Beige
Comfortable right out of the box. Great style and well made. The more you wear the softer they get but maintain their overall appearance.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Very good quality for a reasonable price.
Size: 10, Color: Grey
Very good quality, very soft, very comfortable, look amazing, I’m very happy.
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Reviewed in the United States on May 23, 2026
★★★★★ 4
Comfortable fit for slip-in fabric shoes
Size: 14, Color: Black/Black
My first experience with Marc Joseph. I typically purchase dress and casual work shoes from Florsheim and occasionally Rockport. I'm giving these four stars because the initial fit and feel appear solid. Depending on the shoe brand I wear a size 14 or 15. My feet are slightly wide but I don't alway need wide fit. These size 14 fit well with wide enough toe box. I've tried slip in shoes before and they just don't feel right. These somehow work and there is no heel slip. My only reservation is the high lip on the heel for slip-in and hope they dont catch pant hems. I gave 4 stars because I'll have to determine durability. Granted they are a light fabric shoe with a soft rubber tread. I'd like them to last for at least 6 months..and use them for business casual work wear during warm weather.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Stylish and comfortable.
Size: 8 Wide, Color: Black/Black
Shoes look great and fits well. Definitely recommend pocking another pair.
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Reviewed in the United States on May 10, 2026