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Old 06-27-2018, 10:21 AM   #52
TMS
 
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Drives: 2018 ZL1 1LE - HBM, PDR
Join Date: Jun 2017
Location: Rescue, CA
Posts: 324
Quote:
Originally Posted by Alain View Post
Does the rear diff (elsd) fluid need to be changed at 500 miles just like the engine oil?

Or at 1500 ?
The manual calls for 45,000 miles for both normal and severe duty. But I too changed the diff fluid at 1500 mi. just to get any break-in fines out of the diff. Honestly, my gear lube looked great and had no metal fines that I could detect. I am still glad I changed it as it is super cheap insurance and I have piece of mind.

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