Originally Posted By: oil_film_movies
Originally Posted By: mtlineman
Wondering if the factory oil fill is conventional. semi synthetic or synthetic ? Think Im going to change the OEM filter at 500 miles and add 1 qt of oil
Yeah, AC-Delco semi-synthetic 0w20 is probably still supplied by Mobil oil, although Mobil does not market their own semi-synthetic with their own label on it. ..... dexos1, Gen1, although dexos1 Gen2 is beginning to be available. AC-Delco oil is available from non-dealership sources. I think O'Reilly's Autoparts or somebody else has it on their shelves.
I would just change the oil out, and filter too. Oil filters that come on new cars don't get out many iron particles less than 30 microns in size, so changing the oil filter would have very little effect on cleaning out the new engine's iron particles. Recommend getting a magnetic drain plug (Dimple brand, or GoldPlug
http://goldplug.com/shop/ap04/ are strong magnets) to collect more iron particles. And a Fram Ultra oil filter gets out more smaller particles less than even 10 microns.
If you do change the oil filter you have, remember GM uses very small oil filters, and they don't actually hold a full quart. You could overfill the sump a bit if you add a full quart; likely a half quart will do there.
AC Delco is blended by Phillips 66.