Diesel engine oil

Motor Oil is formulated with high quality base stocks and fortified
with premium additives to offer the ultimate protection of your heavy-duty diesel engine. Xcel
Maximum Duty-Plus will protect EGR/Low-Emission Diesel Engines while maximizing the durability of
Diesel Particulate Filters (DPF’s). Its performance exceeds the latest OEM and API CK-4
requirements and is backwards compatible to previous OEM and API specifications such as CJ-4, CI4, CI-4+, and CH-4. Xcel Maximum Duty-Plus 15W40 carries the API SN specification approval for
use in gasoline engines allowing one oil for owner-operators with mixed fleet use requirements. It is
recommended for use in a wide range of heavy-duty applications and operating environments found
on-and off-highway, including engines operating under heavy loads. It is formulated for extended
service/extended drain when operated under typical operating conditions. Xcel Maximum Duty-Plus
15W40 Motor Oil offers improved TBN retention, lower oil consumption, greater wear protection,
oxidation stability, excellent shear stability, and reduced high temperature deposits.