Truck fleet fuel economy by the use of optimized engine oil, transmission fluid, and gear oil

a technology for transmission fluids and trucks, applied in the direction of liquid degasification, group 5/15 element organic compounds, separation processes, etc., can solve the problems of high energy requirements of new and advanced transmission systems, and achieve the effect of improving the fuel economy of vehicles

Inactive Publication Date: 2009-01-08
AFTON CHEMICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]According to another aspect, there is disclosed a method of improving fuel economy of a vehicle comprising providing to the vehicle a lubricant system comprising an engine oil comprising at least one additive chosen from a viscosity index improver, a dispersant, a detergent, an antioxidant, and an antiwear compound; a transmission fluid comprising at least one additive chosen from a dispersant and a pour-point depressant; and a gear oil comprising at least one additive chosen from a viscosity index improver, an extreme pressure agent, and a dispersant.

Problems solved by technology

Also, new and advanced transmission systems often involve high energy requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example

Fuel Economy in Class 8 Over-the-Road Diesel Truck

[0084]A truck fleet A comprising 8 trucks, wherein each truck comprises Detroit Diesel engines, Eaton transmissions, and Meritor or Alliance axles can run on the disclosed lubricant system comprising an engine oil, a transmission fluid, and a gear oil. An exemplary disclosed lubricant system is shown in Table 1. A truck fleet B comprising 8 trucks, wherein each truck comprises Detroit Diesel engines, Eaton transmissions, and Meritor or Alliance axles can run on a commercially available engine oil, manual transmission fluid, and gear oil. The truck fleets A and B can be class 8 over-the-road diesel trucks, and in general freight hauler use. Furthermore, all the trucks could have about 100,000 miles before the beginning of the proposed test and could have no more than about 250,000 miles of service at the end of the proposed test.

TABLE 1Lubricant SystemComposition, wt. %Engine oil FormulationBase oil30-80Dispersant 1-15Viscosity index ...

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Abstract

The lubricant system of the present disclosure comprises an engine oil comprising at least one additive chosen from a viscosity index improver, a dispersant, a detergent, an antioxidant, and an antiwear compound; a transmission fluid comprising at least one additive chosen from a dispersant and a pour-point depressant; and a gear oil comprising at least one additive chosen from a viscosity index improver, an extreme pressure agent, and a dispersant. There is also disclosed a method of improving fuel economy of a vehicle comprising providing to the vehicle the disclosed lubricant system.

Description

FIELD OF THE DISCLOSURE[0001]The present disclosure relates to a lubricant system comprising an engine oil, a transmission fluid, and a gear oil. There is also disclosed a kit comprising the disclosed compositions. Moreover there is disclosed a method of improving fuel economy.BACKGROUND OF THE DISCLOSURE[0002]Over the years, the fuel economy of vehicles has been improving due to the collective effort of the automobile manufacturers, fuel suppliers, lubricant suppliers, and additive suppliers. As a result of government regulations, newer automobiles are being manufactured with an eye toward increasing fuel economy. Besides reducing the size and weight of the automobile, another way to improve fuel economy is to reduce friction in an engine. A reduction in engine friction can result in a decrease in the amount of fuel consumed by that engine. Also, new and advanced transmission systems often involve high energy requirements. The high speeds generated during engagement and disengageme...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C10M105/02C10M129/42C10M133/04C10M133/48C10M137/14
CPCC10M163/00C10M167/00C10N2240/102C10N2240/10C10N2240/044C10N2240/042C10N2240/04C10M169/04C10M2207/027C10M2207/028C10M2207/10C10M2207/16C10M2207/26C10M2207/262C10M2207/282C10M2209/04C10M2209/062C10M2209/084C10M2209/101C10M2211/08C10M2215/064C10M2215/28C10M2217/043C10M2217/046C10M2219/022C10M2219/044C10M2219/046C10M2219/088C10M2219/089C10M2223/04C10M2223/043C10M2223/045C10M2223/12C10M2227/061C10N2230/54C10N2260/14C10N2260/12C10N2210/02C10N2040/04C10N2040/25C10N2030/54C10N2040/042C10N2040/044C10N2040/252C10N2010/04C10N2060/12C10N2060/14
Inventor ANDERSON, GREGORY P.DEGONIA, DAVID J.
Owner AFTON CHEMICAL
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