i understand about the acea...iam asking what american 5w20 oils meet that if any? my guess is not any unless you go to a 5w30 then there are plenty..i have the link and the realative performance graph which is wonderful...if red line can do it, then you would think american oils can...red line ,a5/b5 hths 3.4,is a very special oil and well formulated no other companies can produce while subscribing to the api standards...i will prob suggest to my neighbor mobil 1 extended performance full synthetic 5w20 oil(they use the trimer moly made by infineum) which is acea a1,hths 2.7 and api sn,gf5...will prob give him good protection.