The American Petroleum Institute this fall alerted 18 engine oil marketers of possible problems based on preliminary testing  of 120 bulk oil samples. In 2008, significant oil quality problems turned up in 20 of 534 (3.75 percent) of the bulk and packaged API-licensed samples tested. 


Read the full report from Lubes-n-Greases by clicking on the link below:,bh5DL1wP