Originally Posted By: Merkava_4
O'Reilly has ACDelco 5W-30 on closeout for $3.99/quart.
I was just wondering if it's safe to use in my Buick 3800 which specs 10W-30.
I had no idea O'Reilly had ACdelco oil, thinkin' it was only at GM dealerships where the price is high. I heard it's essentially Mobil's
only synthetic blend you can get, since they skip blends under their own labelled bottles.
Originally Posted By: Merkava_4
ExMachina, WOW!! That handbook has everything in it. I feel like I struck Gold. Thank you sir.
Its a good read. Only problem is when I get stuck trying to find the ISO, ASTM, etc.
details of each test, and how tough they are to meet.