RL doesn't have it and neither does Amsoil. Lots of other manufacturers of small batch/boutique oils don't and on this DB it's pretty much accepted that the above companies meet the specs without paying for the certification.
So, what does it cost? I'd tend to think that having the cert would make it easier to market the oil but perhaps the target purchasers don't care about a label but instead performance.
So, what does it cost? I'd tend to think that having the cert would make it easier to market the oil but perhaps the target purchasers don't care about a label but instead performance.
