Chevrolet Silverado 4500HD 2022 Owner's Manual page 276

274 Vehicle Care
When to Add Engine Oil
If the oil is below the cross-hatched area at
the tip of the dipstick and the engine has
been off for at least 15 minutes, add 1 L
(1 qt) of the recommended oil and then
recheck the level. See Selecting the Right
Engine Oil later in this section for an
explanation of what kind of oil to use. For
engine oil crankcase capacity, see Capacities
and Specifications 0 371.
Caution
Do not add too much oil. Oil levels above
or below the acceptable operating range
shown on the dipstick are harmful to the
engine. If the oil level is above the
operating range (i.e., the engine has so
much oil that the oil level gets above the
cross-hatched area that shows the proper
operating range), the engine could be
Caution (Continued)
damaged. Drain the excess oil or limit
driving of the vehicle, and seek a service
professional to remove the excess oil.
See Engine Compartment Overview 0 272 for
the location of the engine oil fill cap.
Be sure to add enough oil to put the level
somewhere in the proper operating range.
Push the dipstick all the way back in when
through.
Selecting the Right Engine Oil
Specification
Oils designated as API CK-4 are required for
the vehicle. The CK-4 designation can appear
either alone or in combination with other
American Petroleum Institute (API)
designations, such as API CK-4/SL. These
letters show API levels of quality.
(Continued)
American Petroleum Institute (API) Symbol
This doughnut-shaped logo (symbol) is used
on most oil containers to help you select
the correct oil. It means that the oil has
been certified by the American Petroleum
Institute.
Look for this on the oil container, and use
only those oils that display this logo.
Caution
Use only engine oils that have the
designation CK-4 for the diesel engine.
Failure to use the recommended oil can
damage the DPF and result in engine
damage not covered by the vehicle
warranty.