Transmission & Diff Fluid for BMW E21 320i M10 1.8L

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Replacing your transmission and differential fluid can greatly improve your BMW driving experience. Check out this section for our variety of high quality performance transmission and differential fluids.
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Red Line Manual Transmission/Differential Fluid 75W-90
Red Line Manual Transmission/Differential Fluid 75W-90
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Redline - Corporate Logo
T#:394833
Part#: REDLINE25A
In Stock
Starting at $ 97.99 USD
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Starting at $ 97.99 USD
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Add to Wish List
Red Line MTL may be used in transmissions which recommend 75W, 80W, or 85W GL-4 gear oils, or SAE 30 or 5W/10W30 motor oils. If a 90W GL-4 or SAE 40, 10W40, or 15W40 is required, MT-90 may be used. If the transmission or transaxle requires an SAE 90 GL-5 gear oil, then Red Line 75W90NS or 75W140NS Gear Oil may be used.
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