CK-4 or FA-4?

API CK-4 and API FA-4 oils represent an upgrade in lubricant technology for the trucking industry. We want you to make the most of these improvements by using the right diesel engine oil for your trucks. API CK-4 and API FA-4 oil recommendations can vary between original equipment manufacturers (OEMs), so we’ve provided a helpful chart below that contains the latest information.*

Recommended oil:

OEM Model Pre-2017 engines 2017 engines
Cummins X15 Efficiency Series N/A CK-4 preferred, FA-4 allowed
X15 Performances Series N/A CK-4
ISX12, ISX15 CK-4 CK-4
All other models CK-4 CK-4
Detroit DD13, DD15, DD16 CK-4
FA-4 to 2010 engines
Series 60, MBE 4000 CK-4 N/A
Mack MP7, MP8, MP10 CK-4 CK-4
Navistar A26, N13 CK-4 CK-4/FA-4
N9, N10 CK-4 CK-4
PACCAR MX-11, MX-13 CK-4 CK-4
Volvo D11, D13, D16 CK-4 CK-4

*This chart is updated regularly as additional OEM information becomes available. Please refer to the owner’s handbook for OEM application requirements and oil drain intervals for your vehicle or equipment.