Quote:
Originally Posted by vectravl
Hi,I'm newbie here.I changed transmission fluid on my 2005 BMW X5 E53 3.0i with castro transmax import multi Vehicle which said compatible with BMW.Lately I get trans failsafe pro. come up, downshift was hard and upshift slow ( although drive is fine)I think the fluid was incompatible with my BMW.Can I use Mobil 1 ATF Oil Dexron VI to replace fluid.I want to try before take the car to dealer.
Thanks for your input
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The only aftermarket fluid I have "heard" to be acceptable is Redline D4. Be VERY careful as our transmissions are quite picky and will disintegrate for no reason as it is, let alone if we don't give them what they want! 
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Vancouver, WA
2005 4.4i (LV12368) on Style 87's in summer and Studded Style 130's in winter.
1997 M3/4/5 (EE05340) W/ Vaders, Hella Xenon's, Chromline, DSII's in Summer, Contours on studless snows in winter.
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