Unique oil as a service event
AssigneeCummins Inc.
InventorsRoger Dale England, James D. Kahlenbeck, Corey W. Trobaugh
Life of this patent
Estimating the term…
Abstract
A method of performing a cleanup service on an internal combustion engine. The method involves draining used fleet oil from the engine, filling the engine with cleanup oil, draining the cleanup oil after an operation interval, and filling the engine with fresh fleet oil. The method can be performed as a remedial measure for an engine already exhibiting high oil consumption, or as a preventative measure on a healthy engine.
Claims20
A method of performing a cleanup service on an internal combustion engine, the method comprising:
- draining used fleet oil from the internal combustion engine;
- filling the internal combustion engine with a first cleanup oil;
- draining the first cleanup oil after an operation interval;
- and
- filling the internal combustion engine with fresh fleet oil.
A method of performing a cleanup service on an internal combustion engine, the method comprising:
- flushing the internal combustion engine by concurrently adding a first cleanup oil into the internal combustion engine and draining the first cleanup oil from the internal combustion engine for a first period of time;
- draining the first cleanup oil from the internal combustion engine after the first period of time;
- filling the internal combustion engine with a second cleanup oil;
- draining the second cleanup oil from the internal combustion engine after an operation interval;
- and
- filling the internal combustion engine with fresh fleet oil.
A method of performing a cleanup service on an internal combustion engine, the method comprising:
- concurrently adding flushing cleanup oil into the internal combustion engine and draining the flushing cleanup oil from the internal combustion engine for a first period of time;
- filling the internal combustion engine with an operating cleanup oil comprising an ester-based oil, an alkylated naphthalene and a polyalphaolefin base oil;
- draining the operating cleanup oil from the internal combustion engine after an operation interval;
- and
- filling the internal combustion engine with fresh fleet oil.
Dependencies are inferred from the claim text.