Ok, your right frank. Four ball and all other tests and certifications are junk and all oil but redline and amsoil are cheap and come from the "chinamart" or whatever. Run what ya want. Done arguing.frank_miller said:4-ball is junk, yup but for me I have used API oils and non API (redline etc) and there is not way I a going back. I cannot go against my UOA's on my cars using std full flow oil.