
 
		2018 OIL STUDY 
 OIL BRANDS AND PURCHASING TRENDS 
 CK-4 and FA-4 Implementation 
 Current understanding and adoption 
 Licensing of the American Petroleum Institute’s CK-4  
 and FA-4 heavy duty diesel engines oils – formerly known  
 as PC11A and B – began on December 1, 2016. The new  
 categories improve upon the existing standards by enhancing  
 protection against oil oxidation, safeguarding against  
 engine wear and protecting against degradation of low- and  
 high-temperature properties.  
 With the introduction of the new engine oils, some fleets  
 began implementing the oils into their operations. Of those  
 fleets, 85 percent note they have had no obstacles in using  
 the new engine oils.  
  (Respondents selected all that apply.) 
 23% 
 12  Fleet Maintenance | May 2018 
 While one-fourth of fleets introduced CK-4 oil for all  
 vehicles and another 23 percent implemented use of FA-4  
 for new vehicles entering their fleets, 38 percent of respondents  
 indicated they were unaware of the new oils altogether. 
  It is important to note 42 percent of the fleets surveyed  
 manage light duty vehicles, which the new oils are not marketed  
 to. Even so, of the heavy duty fleets, 28 percent were  
 also unaware, meaning there could be a need in the industry  
 for increased education and promotion.  
 The following infographics show if and how fleets are  
 adopting CK-4 and FA-4 into their fleets. -Vesna Brajkovic  
 and Stefanie Von Rueden 
 With the introduction of  CK-4 and  FA-4, how did you  
 introduce this new generation of oil into your fleet? 
 Have you encountered  
 obstacles in using   
 CK-4 and  FA-4? 
  (Respondents selected all that apply.) 
 3% 
 25% 
 10% 
 9% 
 38% 
 1% 3% 4% 0% 
 7% 
 85% 
 The majority of respondents  
 did not encounter 
  obstacles when using  
 CK-4 and FA-4 oil. 
 Decreased  
 fuel efficiency 
 Increased  
 engine wear 
 Viscosity  
 breakdown 
 Increase in  
 oil change  
 intervals 
 Chemical  
 buildup 
 Other None of the  
 above 
 Adopt usage only  
 for new vehicles  
 entering the  
 fleet with FA-4 
 Use CK-4  
 immediately in all  
 vehicles since this  
 oil is backward  
 compatible 
 Test/monitor FA-4  
 in new vehicles  
 and gradually  
 begin using CK-4  
 in older vehicles 
 Other 
 I am not aware  
 of these new oils  
 and have not yet  
 started planning