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Old 10-15-2019, 12:07 PM   #200
bmlocal175
 
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Drives: 2018 ZL1 Black M6 PDR
Join Date: May 2017
Location: NY
Posts: 103
Just saw this thread... Just got my second free oil change and the rear diff changed. First oil change was around 1000 miles and now I'm around 2500.


Looking at my receipt they gave me 88865635. I didn't know anything about this new oil. Just wondering why I received this oil and not the other. I don't track, not yet anyway, and I have had the car for 2 years and 2500 miles. I know, drive the damn thing.


Going to service the car myself from now on now the freebies are gone. Am I good with the rear diff for awhile if I don't track? Should I change to the new oil next change or keep using what they just put in?
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