Originally Posted By: Quattro Pete
Originally Posted By: UG_Passat
If you care that much about API service levels & ILSAC .... don't worry... Amsoil has you covered:
DEO, 5W-40, CJ-4/SN
OE, 0W-20, SN, Resource Conserving, GF-5
OE, 10w30, SN, Resource Conserving, GF-5
OE, 5W-20, SN, Resource Conserving, GF-5
OE, 5w30, SN, Resource Conserving, GF-5
OED, 15w40, CJ-4/SN
PCO, 15w40, CI-4/SL CI-4 PLUS
XL, 5W-20, SN, Resource Conserving, GF-5
XL, 5w30, SN, Resource Conserving, GF-5
XL, 10w30, SN, Resource Conserving, GF-5
XL, 10W-40, SN
XL, 0W-20, SN, Resource Conserving, GF-5
I think you're missing the point of this thread. None of the oils you listed above have actually been certified to meet these specs. They are only "recommended for" applications requiring these specs. There is a slight difference there.
Actually ALL those oils are API listed.