Phosphorus and phosphours-free low and light ash lubricating oils
OwnerBehrooz A. Khorramianinventor
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Abstract
Phosphorus-free, low ash and light ash motor oils containing no metal DTPs, halogens or hazardous substances are disclosed. The phosphorus-free, low ash and light ash formulations may be prepared either as a lubricating oil or as a concentrated additive for a lubricating oil. Additionally, low ash and light ash motor oils containing no metal DTPs, halogens or hazardous substances are disclosed. The low ash and light ash formulations without metal DTPs may be prepared either as a lubricating oil or as a concentrated additive for a lubricating oil. The use of both the oils and the concentrated additives results in superior price and performance qualities compared to the leading commercial brands.
Claims18
A lubricating oil comprising:
- a. about 80% of an oil selected from the group consisting of a semisynthetic base oil and a synthetic base oil;
- b. about 1 to about 3% of a magnesium salt of an alkylated aryl sulfonic acid or calcium salt of benzene sulfonic acid;
- c. about 0.0005% of a compounded silicone fluid;
- d. about 0.05 to about 0.10% of 1H-Benzotriazole-l-Methanamine N,N-bis(2-Ethyl Hexyl)-Methyl;
- e. about 0.05 to about 0.1% of a 2-5-dimercapto-1,3,4-thiadiazole derivative;
- h. about 0.50% of a diethanolamine derivative;
- i. about 9 to about 10% of an ethylenepropylene copolymer or about 4 to about 8% of a hydrogenated polyisoprene radial polymer;
- j. about 6.5 to about 10% of a dispersant selected from the group consisting of borated polyisobutenyl succinic anhydride;
- ethylenepolyamine reacted with polybutenyl succinic anhydride;
- and a polyisobutenyl succinate ester;
- k. about 0.3% of a dialkyl fumerate/vinyl acetate copolymer or about 0.1 to about 0.2% of a polymethacrylate;
- and
- l. about 0.05% of a rust inhibitor selected from the group consisting of (tetrapropenyl)-butanedioic acid, monoester with 1,2-propanediol (tetrapropenyl)-butanedioic acid wherein said the lubricant oil is absolutely free of ZDTP or metal DTPs.
A concentrated additive for a lubricating oil comprising:
- a. about 50% of an oil selected from the group consisting of a semisynthetic base oil and a synthetic base oil;
- b. about 1 to about 3% of a magnesium salt of alkylated aryl sulfonic acid or calcium salt of benzene sulfonic acid;
- c. about 0.005% of a compounded silicone fluid;
- d. about 0.5 to 1.0% of 1H-Benzotriazole-1-methanamine-N,N-bis(2-ethyl hexyl)-methyl;
- e. about 0.5 to about 1.0% of a 2,5-dimercapto-1,3,4-thiadiazole derivative;
- h. about 3.0% of a diethanolamine derivative;
- i. about 9 to about 10% of an ethylene-propylene copolymer or about 4 to about 8% of a hydrogenated polyisoprene radial polymer;
- j. about 10% of a dispersant selected from the group consisting of a borated polyisobutenyl succinic anhydride, ethylenepolyamine reacted with polybutenyl succinic anhydride;
- and a polyisobutenyl succinate ester;
- k. about 0.3% of a dialkyl fumerate/vinyl acetate copolymer or 0.1 to about 0.2 of a polymethacrylate;
- and
- l. about 0.5% of (tetrapropenyl) butanedioic acid, monoester with 1,2-propanediol and (tetra-propenyl)-butanedioic acid wherein said the concentrated additive is absolutely free of ZDTP or metal DTPs.
Dependencies are inferred from the claim text.