Quote:
Originally Posted by Can'tHave2MuchHP
Your car should already have been factory filled with the 0W-40 ESP since it is a 2019. Pop the hood and check what the oil cap says. It's great stuff and there's no reason not to run it as far as I'm concerned. You will only find the 500/1500 mile oil change recommend in the GM performance prep manual, which doesn't come with the cars but is available on the internet. Also, while I was at Spring Mountain, a place that owns over 100 performance GM cars including dozens of Z06s and ZL1s, they said they do a 500/1500 mile oil/diff change on every car, they consider it mandatory and have seen better results when they've done so.
As for exhausts, I would stick with AWE Touring (Don't let the name fool you, it's loud and aggressive) or Corsa (Same story). Don't get a cheap exhaust that's going to rattle and drone away, unless you like that sort of thing.
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After the initial 500/1500 rear diff change, what is the recommendation on mileage before next diff change. I'm assuming the transmission fluid change isn't required during these?