Five-grade motor oil for internal combustion engines

Claim 2

A BLENDED BASE OIL COMPOSITION FOR USE IN A FIVE-GRADE SAE 5W-40 MOTOR OIL COMPRISING A BLEND OF THE FOLLOWING MINERAL OIL COMPONENTS: COMPONENT (A) WHICH CONSISTS ESSENTIALLY OF A MIXTURE OF

Claim 3

FROM ABOUT 70 TO 85 PARTS BY VOLUME OF A SOLVENT EXTRACTED NEUTRAL OIL OF ABOUT 100-150 SSU VISCOSITY AT 100*F., AND

Claim 4

FROM ABOUT 70 TO 85 PARTS BY VOLUME OF A SOLVENT EXTRACTED NEUTRAL OIL OF ABOUT 100-150 SSU VISCOSITY AT 100*F., AND

Claim 5

FROM ABOUT 15 TO 30 PARTS BY VOLUME OF A SOLVENT EXTRACTED NEUTRAL OIL OF ABOUT 700-800 SSU VISCOSITY, AT 100*F., SAID COMPONENT (A) HAVING A MINIMUM VISCOSITY AT 300*F. OF 2.5 CENTISTOKES, A MINIMUM VISCOSITY AT 210*F. OF 6.0 CENTISTOKES, A MINIMUM VISCOSITY AT 0*F. OF 20.0 POISES, WITH LITTLE OR NONE OF THE OIL BOILING BELOW 725*F.; AND COMPONENT (B) WHICH CONSISTS ESSENTIALLY OF HVI 75-90 DEWAXED OIL OBTAINED FROM AN ESSENTIALLY AROMATIC-FREE CATALYTICALLY CRACKED STOCK SAID DEWAXED OIL HAVING A MINIMUM VISCOSITY AT 210*F. OF 3.2 CENTISTOKES, A MAXIMUM VISCOSITY AT 0*F. OF 5.9 POISES AND A MAXIMUM OF 25 PERCENT BY VOLUME OF THE DEWAXED OIL BOILING BELOW 725*F., AND WHEREIN COMPONENT (B) COMPRISES FROM ABOUT 70 TO 85 PERCENT BY VOLUME OF THE TOTAL BASE OIL COMPOSITION.

Claim 6

FROM ABOUT 15 TO 30 PARTS BY VOLUME OF A SOLVENT EXTRACTED NEUTRAL OIL OF ABOUT 700-800 SSU VISCOSITY, AT 100*F., SAID COMPONENT (A) HAVING A MINIMUM VISCOSITY AT 300*F. OF 2.5 CENTISTOKES, A MINIMUM VISCOSITY AT 210*F. OF 6.0 CENTISTOKES, A MINIMUM VISCOSITY AT 0*F. OF 20.0 POISES, WITH LITTLE OR NONE OF THE OIL BOILING BELOW 725*F.; AND COMPONENT (B) WHICH CONSISTS ESSENTIALLY OF HVI 75-90 DEWAXED OIL OBTAINED FROM AN ESSENTIALLY AROMATIC-FREE CATALYTICALLY CRACKED STOCK SAID DEWAXED OIL HAVING A MINIMUM VISCOSITY AT 210*F. OF 3.2 CENTISTOKES, A MAXIMUM VISCOSITY AT 0*F. OF 5.9 POISES AND A MAXIMUM OF 25 PERCENT BY VOLUME OF THE DEWAXED OIL BOILING BELOW 725*F., AND WHEREIN COMPONENT (B) COMPRISES FROM ABOUT 70 TO 85 PERCENT BY VOLUME OF THE TOTAL BASE OIL COMPOSITION.

Claim 7

from about 82 to 95 parts by volume of a fraction from said catalytically cracked stock having a viscosity at 210*F. of from 3.8 to 4.0 centistokes, a maximum viscosity at 0*F. of 5.5 poises and a maximum of 15 percent by volume of said oil fraction boiling below 725*F.

Claim 8

from about 82 to 95 parts by volume of a fraction from said catalytically cracked stock having a viscosity at 210*F. of from 3.8 to 4.0 centistokes, a maximum viscosity at 0*F. of 5.5 poises and a maximum of 15 percent by volume of said oil fraction boiling below 725*F.

Claim 9

from about 16 to 28 parts by volume of a solvent extracted neutral oil of about 750 SSU viscosity at 100*F., with zero percent of the oil boiling below 725*F.; and component (B) which consists essentially of a blend of dewaxed oils obtained from an essentially aromatic-free catalytically cracked stock; said blend having a maximum of 15 percent by volume of the dewaxed oils boiling below 725*F.; wherein component (B) comprises 70 to 80 percent by volume of the total base oil composition.

Claim 10

from about 16 to 28 parts by volume of a solvent extracted neutral oil of about 750 SSU viscosity at 100*F., with zero percent of the oil boiling below 725*F.; and component (B) which consists essentially of a blend of dewaxed oils obtained from an essentially aromatic-free catalytically cracked stock; said blend having a maximum of 15 percent by volume of the dewaxed oils boiling below 725*F.; wherein component (B) comprises 70 to 80 percent by volume of the total base oil composition.

Claim 11

from about 15 to 30 parts by volume of a solvent extracted neutral oil of about 700-800 SSU viscosity at 100*F., said component (A) having a minimum viscosity at 300*F. of 2.5 centistokes, a minimum viscosity at 210*F. of 6.0 centistokes, a maximum viscosity at 0*F. of 20.0 poises with little or none of the oil boiling below 725*F.; and component (B) which consists essentially of HVI 75-90 dewaxed oil obtained from an essentially aromatic-free catalytically cracked stock, said dewaxed oil having a minimum viscosity at 210*F. of 3.2 centistokes, a maximum viscosity at 0*F. of 5.9 poises and a maximum of 25 percent by volume of the dewaxed oil boiling below 725*F.; and wherein component (B) comprises from about 70 to 85 percent by volume of the total base oil composition.

Claim 12

from about 15 to 30 parts by volume of a solvent extracted neutral oil of about 700-800 SSU viscosity at 100*F., said component (A) having a minimum viscosity at 300*F. of 2.5 centistokes, a minimum viscosity at 210*F. of 6.0 centistokes, a maximum viscosity at 0*F. of 20.0 poises with little or none of the oil boiling below 725*F.; and component (B) which consists essentially of HVI 75-90 dewaxed oil obtained from an essentially aromatic-free catalytically cracked stock, said dewaxed oil having a minimum viscosity at 210*F. of 3.2 centistokes, a maximum viscosity at 0*F. of 5.9 poises and a maximum of 25 percent by volume of the dewaxed oil boiling below 725*F.; and wherein component (B) comprises from about 70 to 85 percent by volume of the total base oil composition.

Claim 13

from about 82 to 95 parts by volume of a fraction from said catalytically cracked stock having a viscosity at 210*F. of from 3.8 to 4.0 centistokes, a maximum viscosity at 0*F. of 5.5 poises and a maximum of 15 percent by volume of said oil fraction boiling below 725*F.

Claim 14

from about 82 to 95 parts by volume of a fraction from said catalytically cracked stock having a viscosity at 210*F. of from 3.8 to 4.0 centistokes, a maximum viscosity at 0*F. of 5.5 poises and a maximum of 15 percent by volume of said oil fraction boiling below 725*F.

Claim 15

from about 16 to 28 parts by volume of a solvent extracted neutral oil of about 750 SSU viscosity, at 100*F., said component (A) having a minimum viscosity at 300*F. of 2.5 centistokes, a minimum viscosity at 210*F. of 6.0 centistokes, a maximum viscosity of 0*F. of 20.0 poises, with zero percent of the oil boiling below 725*F; and component (B) which consists essentially of a blend of dewaxed oils obtained from an essentially aromatic-free catalytically cracked stock, said blend having a minimum viscosity of 210*F. of 3.2 centistokes, a maximum viscosity at 0*F. of 5,9 poises and a maximum of 15 percent by volume of the dewaxed oils boiling below 725*F.; and wherein component (B) comprises from about 70 tO 80 percent by volume of the total base oil composition.

Claim 16

from about 16 to 28 parts by volume of a solvent extracted neutral oil of about 750 SSU viscosity, at 100*F., said component (A) having a minimum viscosity at 300*F. of 2.5 centistokes, a minimum viscosity at 210*F. of 6.0 centistokes, a maximum viscosity of 0*F. of 20.0 poises, with zero percent of the oil boiling below 725*F; and component (B) which consists essentially of a blend of dewaxed oils obtained from an essentially aromatic-free catalytically cracked stock, said blend having a minimum viscosity of 210*F. of 3.2 centistokes, a maximum viscosity at 0*F. of 5,9 poises and a maximum of 15 percent by volume of the dewaxed oils boiling below 725*F.; and wherein component (B) comprises from about 70 tO 80 percent by volume of the total base oil composition.

Claim 17

A blended base oil composition of claim 1 for use in a five-grade SAE 5W-40 motor oil comprising a blend of the following mineral oil components: component (A) which consists essentially of a mixture of

Claim 18

from about 15 to 30 parts by volume of a solvent extracted neutral oil of about 700-800 SSU viscosity, at 100*F., said component (A) having a minimum viscosity at 300*F. of 2.5 centistokes, a minimum viscosity at 210*F. of 6.0 centistokes, a maximum viscosity at 0*F. of 20.0 poises, with little or none of the oil boiling below 725*F.; and component (B) which consists essentially of HVI 75-90 dewaxed oil obtained from an essentially aromatic-free catalytically cracked stock said dewaxed oil having a minimum viscosity at 210*F. of 3.2 centistokes, a maximum viscosity at 0*F. of 5.9 poises and a maximum of 25 percent by volume of the dewaxed oil boiling below 725*F., and wherein component (B) comprises from about 70 to 85 percent by volume of the total base oil composition.

Claim 19

from about 15 to 30 parts by volume of a solvent extracted neutral oil of about 700-800 SSU viscosity, at 100*F., said component (A) having a minimum viscosity at 300*F. of 2.5 centistokes, a minimum viscosity at 210*F. of 6.0 centistokes, a maximum viscosity at 0*F. of 20.0 poises, with little or none of the oil boiling below 725*F.; and component (B) which consists essentially of HVI 75-90 dewaxed oil obtained from an essentially aromatic-free catalytically cracked stock said dewaxed oil having a minimum viscosity at 210*F. of 3.2 centistokes, a maximum viscosity at 0*F. of 5.9 poises and a maximum of 25 percent by volume of the dewaxed oil boiling below 725*F., and wherein component (B) comprises from about 70 to 85 percent by volume of the total base oil composition.

Claim 20

The blended base oil composition of claim 1 wherein component (B) consists essentially of a blend of

Claim 21

The blended base oil composition of claim 2 wherein the volume ratio of component (B) to component (A) is about 4 to 1.

Claim 22

In a five-grade SAE 5W-40 motor oil with excellent consumption properties and thermal and wear stability having a measured viscosity at 0*F. not to exceed 12.0 poises, a minimum viscosity at 210*F. of 14.7 centistokes, a minimum viscosity at 300*F. of about 6.5 centistokes, and wherein no more than 15 percent by volume of the oil boils below 725*F., comprising a multifunctional detergent-dispersant-inhibitor additive, a viscosity index improver and a base oil composition the improvement comprising using as a base oil a blend of the following mineral oil components: component (A) which consists essentially of a mixture of

Claim 23

In a five-grade SAE 5W-40 motor oil with excellent consumption properties and thermal and wear stability having a measured viscosity at 0*F. not to exceed 12.0 poises, a minimum viscosity at 210*F. of 14.7 centistokes, a minimum viscosity at 300*F. of about 6.5 centistokes, and wherein no more than 15 percent by volume of the oil boils below 725*F., comprising a multifunctional detergent-dispersant-inhibitor additive, a viscosity index improver and a base oil composition the improvement comprising using as a base oil a blend of the following mineral oil components: component (A) which consists essentially of a mixture of

Claim 24

The five-grade motor oil of claim 5 wherein no more than 12 percent by volume of the boil boils below 725*F. and component (A) consists essentially of

Claim 25

The five-grade SAE 5W-40 motor oil composition of claim 4 wherein component (B) consists essentially of a blend of

Claim 26

The composition in claim 5 wherein said viscosity index improver is polymethylmethacrylate and said multifunctional detergent additive comprises a mixture of zinc dialkyl dithiophosphate, a calcium alkyl phenate, a succinimide and magnesium sulfonate.

Claim 27

An HVI 75-90 dewaxed oil having an average viscosity of 75 to about 90 SSU at 100*F. obtained from an essentially aromatic-free catalytically cracked stock, said dewaxed oil having a minimum viscosity at 210*F. of 3.2 centistokes, a maximum viscosity at 0*F. of 5.9 poises and a maximum of 25 percent by volume of the dewaxed oil boiling below 725*F.

Claim 28

An HVI 75-90 dewaxed oil having an average viscosity of 75 to about 90 SSU at 100*F. obtained from an essentially aromatic-free catalytically cracked stock, said dewaxed oil having a minimum viscosity at 210*F. of 3.2 centistokes, a maximum viscosity at 0*F. of 5.9 poises and a maximum of 25 percent by volume of the dewaxed oil boiling below 725*F.

Claim 29

The HVI 75-90 dewaxed oil of claim 9 wherein a maximum of 15 percent by volume of the dewaxed oil boils below 725*F.