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This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
All sets of 12 now 10% off regular price!
Red Line 75W140 is a full synthetic high-performance gear oil that is an excellent substitute for expensive factory fluid and an upgrade over off-the-shelf economy fluid. Red Line thoroughly evaluates the manufacturer's recommendations and only makes a fluid recommendation if their own product meets or exceeds the original specification. In many cases the Red Line synthetic will outperform the factory supplied fluids. We've been using Red Line Oil in our BMWs since we opened in 1994 and it remains our best selling BMW differential fluid. 75/140 is a specialized weight used for BMW M3, M5, and M6 models with the M Variable limited slip diff (all M models since 2001). Red Line fluid is used in nearly all E46 M3, E92 M3, E60 M5 we service as well as the custom differentials that we sell. It's great for the street where the polyol-ester base has natural lubricity and friction modifiers lead to smoother and quieter operation with lower operating temps than the factory fluid. We also use it in the track cars we build and prep. It may also be used in other specialized situations where a regular 75/90 will be too thin at elevated temperatures and your diff builder has approved a heavier weight oil.
Recommended for API GL-5, GL-6, MT-1, MIL-L-2105E, and SAE J2360. An alternative to the very expensive factory BMW SAF-XJ+FM diff fluid (#83222282583).
This product was last offered at the strikethrough price on
04-15-2026
This product was last offered at the strikethrough price on
04-15-2026
This product was last offered at the strikethrough price on
07-14-2026
This product was last offered at the strikethrough price on
07-14-2026
The DCT transmission in your BMW is nothing short of incredible and exhilarating, but also astronomically expensive to replace. BMW has been labeling fluids as "lifetime" for quite some time now, and as enthusiasts and owners have learned over the years, there simply is no fluid that last a lifetime.
This DCT service kit that takes the guesswork out of a fluid change . No need to track down the correct fluid and plugs, simply open the box, and get the job done the correct way. By servicing your DCT transmission, you will be assured that old, broken down fluid won't cause a several thousand dollar nightmare. We recommend this service every 40,000 miles to keep your transmission going strong for years to come.
Kit includes:
Please note: We include 5 quarts of DCT fluid because without a GT1 diagnostic tool and much more involved labor, you will not be able to replace over 5 quarts of fluid. Many elect to do this service and simply flush the fluid 5,000 miles later to ensure all fluid has been flushed, but this is not mandatory.
Both the cartridge and suction filters have their own challenges in replacing. For best results, replace both.
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
06-04-2026
This product was last offered at the strikethrough price on
06-04-2026
Automatic transmissions are reliable, shift smoothly, and can last without issue so long as they are properly maintained. Over time, the transmission fluid becomes thick and the filter becomes contaminated with small metal particles. This can cause excess wear, high transmission operating temperatures, and eventual failure. To prevent this we recommend changing your filter, fluid, and seals to ensure your transmission continues to operate flawlessly. We recommend filter and fluid changes every 50,000 miles.
Kit Includes:
Fits the following BMWs:
E82/88 BMW 128i - with GA6L45R automatic transmission
E83 BMW X3 N52 3.0L - with GA6L45R automatic transmission
E9X BMW 328i/xi - with GA6L45R automatic transmission
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
Automatic transmissions are reliable, shift smoothly, and can last without issue so long as they are properly maintained. Over time, the transmission fluid becomes thick and the filter becomes contaminated with small metal particles. This can cause excess wear, high transmission operating temperatures, and eventual failure. To prevent this we recommend changing your filter, fluid, and seals to ensure your transmission continues to operate flawlessly. We recommend filter and fluid changes every 50,000 miles.
Kit Includes:
Fits the following BMWs:
E84 BMW X1 xDrive35i
E90 BMW 325i/xi, 328i/xi (with GA6HP19Z automatic transmission), 330i/xi, 335i/xi
E91 BMW 325i/xi, 328i/xi (with GA6HP19Z automatic transmission)
E92 BMW 328i/xi (with GA6HP19Z automatic transmission), 335i/x
E93 BMW 328i (with GA6HP19Z automatic transmission), 335i
E60 BMW 525i/xi, 528i/xi, 530i/xi, 535i/xi
E61 BMW 525i, 530xi, 535xi
E70 BMW X5 xDrive30i
E71 BMW X6 35iX
E82/88 BMW 128i(with GA6HP19Z automatic transmission), 135i (N54)
F01/02 BMW 740i/Li
E85/86/89 BMW Z4 3.0i/Si sDrive30i M54 N52
This product was last offered at the strikethrough price on
04-15-2026
This product was last offered at the strikethrough price on
04-15-2026
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
07-14-2026
This product was last offered at the strikethrough price on
07-14-2026
This product was last offered at the strikethrough price on
05-07-2026
All sets of 12 now 10% off regular price!
Add to your limited slip differential to improve the fluid and wear prevention!
Features:
This product was last offered at the strikethrough price on
06-15-2026
This product was last offered at the strikethrough price on
06-01-2026
This product was last offered at the strikethrough price on
06-01-2026
This product was last offered at the strikethrough price on
03-04-2026
This product was last offered at the strikethrough price on
06-16-2026
All sets of 12 now 10% off regular price!
Synthetic D4 ATF is suitable for use where Dexron III, Dexron II, or Mercon fluids are recommended. ATF D4 is similar to Red Line's MTL formula and can be used in many BMW manual transmissions where MTF or MTF-LT2 is called for. The D4 ATF provides significantly improved gear protection than most OEM oils. The balanced frictional characteristics provides smooth and consistent shifts for extended drain intervals. The superior stability compared to petroleum ATFs allows high-temperature operation without varnishing valves and clutches which leads to transmission failure.
Features:
All sets of 12 now 10% off regular price
This is Red Line's latest synthetic transmission fluid that is compatible with BMW's MTF-LT3 transmission fluid. This is the transmission fluid used in both manual and automatic transmissions since the mid-2000's. To confirm, check the decal located on the side of your transmission. Price is per quart.
Synthetic D6 ATF is a lower viscosity version of the D4ATF and is designed for better fuel efficiency in CAFE testing. Dexron VI requires a different approach to a conventional ATF formulation. Rather than beginning with a 7.5 cSt fluid and allowing a viscosity loss in use to drop to 5.5 cSt, the Dexron VI fluid requires a starting viscosity of less than 6.4 and a final drop to no less than 5.5 cSt. Red Line D6 will drop to no less than 6.1 cSt. Since the final viscosity after use of these fluids are similar, Dexron VI fluids can be used where Dexron III fluidswere previously recommended (with the exception of some manual transmission applications, our customers report).
D6 ATF also provides significantly improved gear protection and will provide a GL-4 level of gear protection. The balanced frictional characteristics provide smooth and consistent shifts for extended drain intervals. The superior stability compared to petroleum ATFs allows high-temperature operation without varnishing valves and clutches which leads to transmission failure.