Hello there members,
As for the oil consumption issues, in order to do an accurate consumption test, the vehicle must start doing a test, AFTER 5000 miles, and not before.
It may take up to this long for the engine to break in. And the published oil consumption specs are 1 quart in 2000 miles per a GM service bulletin issues recently.
As far as the issue, according to GM, you must start the test after 5000 miles, and check it for intervals of 500 miles, for another 2000.
This is the most accurate way to tell if you vehicle is using oil.
After this time, then a fix should be adddressed. Also, as you engine breaks in, you will use more oil the more you load the engine, as if you are driving aggressively.
Theses are thoughts, and there are some of you that already have this issue, and there are some that are seeing that after the mileage, your consumption has dropped.
Best to all, c4c5