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What Automatic Transmission Fluid should I use?

39K views 17 replies 10 participants last post by  yo_marc 
#1 · (Edited)
I have a 2004 BMW 330xi with the GM A5s390r transmission. I want to change my transmission fluid because my car has 94,000 miles now. What ATF should I use? I heard Redline D4 is good and also Valvoline VV370 DEXRON-VI. Would both of these work? And would you recommend any other ATF fluids?

Redline D4- http://www.amazon.com/Red-Line-3050...&sr=1-1&keywords=automatic+transmission+fluid

Valvoline VV370 DEXRON-VI- http://www.amazon.com/Valvoline-DEX...&sr=1-4&keywords=automatic+transmission+fluid

Thank you

Edit: I also noticed there is a Redline D6 ATF... whats the difference from D4 to D6
 
#13 ·
Traded in My 2004 BMW 330xi for a 2012 Mazda3 skyactiv that gets 40mpg. Im tired of having a non reliable car, and bmw's parts are way to expensive. Im staying on the Japanese brands for even after my Mazda. Cheap parts, good on gas, and reliable.
 
#18 · (Edited)
Just changed fluid and filter this weekend - Put in close to 6 quarts of Valvoline Dexron 6.

Tranny didn't implode, explode, or go up in smoke. To the best of my knowledge, shifts just as it did before.

Personally, I didn't notice any viscosity differences between original (used) fluid (Texaco spec'd), and Dex6.

Original fluid came out looking like dirty motor oil. Perhaps not quite as black.

87,000 miles, 05 325xi.
 
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