Quote:
Originally Posted by Atebit
WRT (assuming we're taking automatic) transmission fluid, I always thought it was hydraulic fluid rather than oil. With the transmission being a closed system, IMHO there shouldn't be a need to replace it unless you've had some other transmission problem that's contaminated it or caused it to burn.
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Transmission is definitely oil lubricated and there is no mechanical device in a car that doesn't benefit from changing the lubrication. It's not a closed system...the oil is easily drained like anything else. We all know why BMW recommends a lifetime fill on various parts, but that's not in your best interests if you're keeping it for a long time.
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2016 340i XDrive, EBII/black, 6 MT, M Sport, Track Handling, Cold Weather, Tech, Lighting, Driver Assistance Plus.
2012 Z4 35i, ED 2/24/2012, Melbourne Red Metallic, Black Leather, Carbon Trim, 6MT, M Sport, CW, PP, PS, NAV, CA.