Quote:
Originally Posted by Idaho2018GTPremium
There's some GM track documents that indicate to change the oil at 500 miles and to change the rear diff fluid before track use. I changed my oil for the first time at 1000 miles and considered that the end of my break-in period. I didn't baby it during break in, but I never got close to redline. I definitely gave it some good runs to 4000 rpm, and a few times accidentally hit 4500-4700ish rpms, but only very briefly. I changed the oil again at ~4,600 miles (earlier than needed) and also had the rear diff fluid changed with the OEM ACDelco fluid. The service tech said it was sliver-ish. Highly recommend a similar fluid change schedule, or even better, change the rear diff fluid at 1,000 miles with the first oil change.
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Yes i have seen the track pdf. but the most current is 2019 I cant find one newer. That is why im curious if the info has changed and why no newer track document is available. The manual for the 2022 and the track supplement for the 2022 go on for page after page about track prep but make zero mention of a 500 mile oil change.
I am now curious about the diff oil. I can for answers now I have more questions
