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Old 06-10-2023, 11:01 AM   #39
AZ_1LE
 
Drives: 2019 ZL1 1LE
Join Date: Feb 2017
Location: Gilbert, AZ
Posts: 674
Quote:
Originally Posted by Ruthlesszl1 View Post
Wondering this as well I want to switch to the tremic fluid but not sure if I need to flush or they can mix a little?
The lines are completely separate and ONLY part of the cooling system for the transmission and differential. You do not need to touch that at all. Only drain the transmission fluid and refill with just under 3 liters (I use Amsoil Signature ATF in my SS 1LE as well as my ZL1 1LE).
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Old: 2017 SS 1LE
Old: 2017 ZL1
Current: 2019 ZL1 1LE
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