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I've never owned an LS or LT motor that didn't burn about 1/4 - 1/2 quart of oil every 5000 miles or so, regardless of the break in procedure. If you drive the car hard it's going to burn a little bit of oil no matter what. My 2023 hasn't shown any concerning trends but I only have 3000 miles on it. On its second oil change (1st-600mi, 2nd-2400mi) it was about 1/4 quart low. So far after another 1000 miles it hasn't used any discernable amount of oil.
Additionally if you're checking the oil right after you turn the car off, the level won't be accurate because of all of the oil that is up top in the engine. Check the oil when hot and give it 15-20 minutes after you shut it off before you check it.
Anyhow, 1/4 of a quart every 2000-3000 miles isn't alarming at all and would be considered normal. My C7 Z06 with 30K on the clock burns 1/2 quart every 4000 miles. Zero issues. I drive that car real hard.
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GM Gen V Calibrator
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