Lubricant composition
View Patent ↗A lubricant composition comprising a dispersant and a base oil comprising less than about 3% by weight of tetracycloparaffins is disclosed. Methods of making and using the lubricant composition are also disclosed.
1. A lubricant composition comprising a dispersant and a mineral base oil comprising less than about 3%, and not 0%, by weight of tetracycloparaffins.
2. The composition of claim 1 , wherein the dispersant is at least one of succinimide, borated succinimide, Mannich dispersant, functionalized olefin copolymer, and poly(meth)acrylate copolymer.
3. The composition of claim 2 , wherein the dispersant is a succinimide.
4. The composition of claim 1 , wherein the dispersant is a highly grafted, amine derivatized functionalized ethylene-propylene copolymer.
5. The composition of claim 1 , wherein the dispersant is present in the lubricant composition in an amount ranging from about 0.1 wt. % to about 10 wt. % relative to the total weight of the composition.
6. The composition of claim 1 , wherein the dispersant is present in the lubricant composition in an amount ranging from about 1 wt. % to about 7 wt. % relative to the total weight of the composition.
7. The composition of claim 1 , further comprising antiwear agents, detergent, diluents, defoamers, demulsifiers, anti-foam agents, corrosion inhibitors, extreme pressure agents, seal well agents, antioxidants, pour point depressants, rust inhibitors and friction modifiers.
8. A method of reducing thin-film friction of a fluid between surfaces comprising providing to the fluid a composition comprising a dispersant and a mineral base oil comprising less than about 3%, and not 0%, by weight of tetracycloparaffins.
9. A method of increasing fuel efficiency in a vehicle comprising providing to a vehicle a composition comprising a dispersant and a base oil comprising less than about 3%, and not 0%, by weight of tetracycloparaffins.
10. The method of claim 9 , wherein the dispersant is at least one of succinimide, borated succinimide, Mannich dispersant, and functionalized olefin copolymer, poly(meth)acrylate copolymers.
11. The method of claim 10 , wherein the dispersant is a succinimide.
12. The method of claim 9 , wherein the dispersant is a highly grafted, amine derivatized functionalized ethylene-propylene copolymer.
13. The method of claim 9 , wherein the dispersant is present in the lubricant composition in an amount ranging from about 0.1 wt. % to about 10 wt. % relative to the total weight of the composition.
14. An engine, transmission or gear set lubricated with a lubricant composition according to claim 1 .
15. A method of making a lubricant composition comprising combining a dispersant and a mineral base oil comprising less than about 3%, and not 0%, by weight of tetracycloparaffins.
16. The method of claim 15 , wherein the dispersant is at least one of succinimide, borated succinimide, Mannich dispersant, and functionalized olefin copolymer, poly(meth)acrylate copolymers.
17. The method of claim 15 , wherein the dispersant is present in the lubricant composition in an amount ranging from about 0.1 wt. % to about 10 wt. % relative to the total weight of the composition.
18. A method for lubricating a machine comprising providing to the machine the lubricant composition of claim 1 .
19. The method of claim 18 , wherein the machine is a gear.
20. The method of claim 18 , wherein the machine is an engine.