Quote:
Originally Posted by FoundNemo
Just a PSA to tag onto the excellent threads/video posted about changing the eLSD fluid. You definitely will want to do it twice to get all the break-in metal and crap out. The first eLSD fluid drain at 1900 miles was completely opaque, grey/silver and metallic like a paint job. There was accumulated metal on both the fill (tiny bit) and drain plug (ton) each for the eLSD. My understanding is this is normal and no odd sounds/issues on the car but I wanted to clean it out for sure.
Since the job is super easy on a lift, I went ahead and bought 4 bottles of the GM fluid so I could do a 2x drain and fill to make sure its cleaned out really well. I wasnt confident that pouring in a little extra fluid to "wash" it through would get as much out so I got four bottles up front.
The pics attached are of the 2nd drain, not the 1st, showing that there was a big improvement from the solid/crazy thick first drain but still plenty of stuff to flush out after 50 miles of driving on the 1st re-fill. I'd say the first flush got 60% of the stuff out and the 2nd got another 20-25% more, given that it was translucent and still colored/bit metally but not as much as the first at all. The fluid going in fyi is transparent completely and lightly yellow in tint.
Pics of the 2nd drain here so you can see there is still some metal and crud to get out after one drain/fill. I wont be doing another as it seems unnecessary but super glad I did this twice.
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Did you drive it before doing the second drain/fill? It seems that would help further agitate and dislodge the stuff you are attempting to get out with a second drain and fill.