Cleaning formula for motor vehicle intake and exhaust systems
A cleaning system is provided to reduce, minimize, or eliminate deposits located within gaseous intake, processing, and emissions portions of a vehicle engine. The cleaning system includes use of a cleaning composition for removing such deposits. The cleaning composition can include water; a nitrogen-based dispersant or cleaner; a surfactant; a C6-C18 alcohol; a glycol ether; and an organic acid.
1. An aqueous-based cleaning composition for removal of engine deposits, comprising:
about 0.5 vol % to about 10.0 vol % of a nitrogen-based dispersant;
about 0.25 vol % to about 4.0 vol % of a surfactant;
about 2 vol % to about 12 vol % of an C6 to C18 alcohol;
about 2 vol % to about 30 vol % of a glycol ether;
about 0.25 vol % to about 4.0 vol % of a C2 to C18 organic acid; and
about 30 vol % to about 95 vol % water.
2. The aqueous-based cleaning composition of claim 1 , wherein the C6 to C18 alcohol is tetrahydrofuryl alcohol.
3. The aqueous-based cleaning composition of claim 1 , wherein the glycol ether is dipropylene glycol methyl ether, diethylene glycol butyl ether, or a combination thereof.
4. The aqueous-based cleaning composition of claim 1 , wherein the C2 to C18 organic acid is ethylhexanoic acid.
5. The aqueous-based cleaning composition of claim 1 , wherein the surfactant is an alcohol ethoxylate.
6. The aqueous-based cleaning composition of claim 1 , wherein the nitrogen-based dispersant is morpholine, a morpholine derivative, aminopropylmorpholine, benzyl amine, lauryl amine, isononyl amine, oleyl amine, or a combination thereof.
7. The aqueous-based cleaning composition of claim 1 , wherein the composition comprises at least about 5 vol % of the C6 to C18 alcohol, about 6 vol % or less of the nitrogen-based dispersant, about or less of the C2 to C18 organic acid, or about 2 vol % or less of the surfactant.
8. The aqueous-based cleaning composition of claim 1 , wherein the composition comprises at least about 5 vol % of the C6 to C18 alcohol, about 6 vol % or less of the nitrogen-based dispersant, about 2 vol % or less of the C2 to C18 organic acid, and about 2 vol % or less of the surfactant.
9. The aqueous-based cleaning composition of claim 1 , wherein the composition further comprises at least one additional component.
10. The aqueous-based cleaning composition of claim 1 , wherein the composition comprises at least about 10 vol % of the glycol ether.
11. An aqueous-based cleaning composition for removal of engine deposits, comprising:
about 0.5 vol % to about 10.0 vol % of a morpholine, a morpholine derivative, aminopropylmorpholine, benzyl amine, lauryl amine, isononyl amine, oleyl amine, or a combination thereof;
about 0.25 vol % to about 4.0 vol % of an alcohol ethoxylate surfactant;
about 2 vol % to about 12 vol % of a C6 to C18 alcohol;
about 2 vol % to about 30 vol % of a C6 to C12 glycol ether;
about 0.25 vol % to about 4.0 vol % of a C2 to C18 organic acid; and
about 40 vol % to about 95 vol % water.
12. The aqueous-based cleaning composition of claim 11 , wherein the C6 to C18 alcohol is tetrahydrofuryl alcohol.
13. The aqueous-based cleaning composition of claim 11 , wherein the C6 to C12 glycol ether is dipropylene glycol methyl ether, diethylene glycol butyl ether, or a combination thereof.
14. The aqueous-based cleaning composition of claim 11 , wherein the C2 to C18 organic acid is ethylhexanoic acid.
15. A method of cleaning an engine, comprising:
introducing a cleaning composition into an air intake system, a turbocharger, a hot exhaust gas recirculation system, or a combination thereof of the engine, the cleaning composition comprising:
about 0.41 vol % to about 10.0 vol % of a nitrogen-based dispersant;
about 0.25 vol % to about 4.0 vol % of a surfactant;
about 2 vol % to about 12 vol % of an C6 to C18 alcohol;
about 2 vol % to about 30 vol % of a glycol ether;
about 0.25 vol % to about 4.0 vol % of a C2 to C18 organic acid; and
about 40 vol % to about 95 vol % water.
16. The method of claim 15 , wherein the cleaning composition is introduced into the engine while the engine is running.
17. The method of claim 16 , wherein the cleaning composition is heated to a temperature of about 100° F. to about 212° F. prior to introducing the cleaning composition into the engine.
18. The method of claim 15 , wherein the cleaning composition is introduced into the engine at an ambient temperature.
19. The method of claim 15 , wherein the cleaning composition further comprises an additional component.
20. The method of claim 15 , wherein the cleaning composition comprises
about 0.5 vol % to about 6.0 vol % of a morpholine, a morpholine derivative, aminopropylmorpholine, benzyl amine, lauryl amine, isononyl amine, oleyl amine, or a combination thereof;
about 0.25 vol % to about 2.0 vol % of an alcohol ethoxylate surfactant;
about 5 vol % to about 12 vol % of a C6 to C18 alcohol;
about 10 vol % to about 30 vol % of a C6 to C12 glycol ether;
about 0.25 vol % to about 4.0 vol % of a C2 to C18 organic acid; and
about 45 vol % to about 84 vol % water.