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ZF 8HP service & rear e-diff service

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Old Mar 12, 2026 | 06:10 PM
  #11  
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Originally Posted by CincyRovers
Got the results back from Blackstone Labs for the original Lifeguard 8 ATF. Overall everything looked good, other than the insolubles, which were right at the 0.1% mark. Based on my results, I'd recommend to have this serviced between 50k-60k instead of the ZF-recommended 50k-75k miles.

Very interesting. I took a sample but I've not shipped it off yet. Would be fun compare the results. Thanks for posting the report.
 
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Old Mar 13, 2026 | 08:33 AM
  #12  
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From: Cincinnati, OH
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Originally Posted by GavinC
Very interesting. I took a sample but I've not shipped it off yet. Would be fun compare the results. Thanks for posting the report.
Yes! Please let us know what your results are when you get them!
 
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