Method for deconditioning an engine used in fuel economy tests

Details Method for deconditioning an engine used in fuel economy tests Method for deconditioning an engine used in fuel economy tests

1980-01-03

1981-08-18

Myracle, Jerry W.

Measuring and testing

Test stand

For engine

73 10, G01M 1500

Patent

active

042839408

ABSTRACT:
A method for deconditioning an engine used in evaluating the fuel economy derived from lubricating oils wherein a deconditioning oil is added to the engine after removal of the test lubricating oil, the deconditioning oil comprising a lubricating oil composition containing a selected overbased metal salt or a selected neutral metal salt, the salt being selected from the group consisting of alkali metal or alkaline earth metal sulfonates, phenates, phosphonates and thiophosphonates.

REFERENCES:
patent: 3562159 (1971-02-01), Mastin
patent: 3671430 (1972-06-01), Corringer
Smalheer, C. V. et al., Lubricant Additives, 1967, pp. 2-6, Publication by The Lezius-Hiles Co., Cleveland, Ohio
Waddey, W. E. et al., Improving Fuel Economy Via Engine Oils, Paper 780,599 SAE Passenger Car Meeting, Jun. 1978.
Retzloff, J. B. et al., Fuel Economy Benefits from Modified Crankcase Lubricants, ASLE Preprint No. 79-AM-2C-1, Apr.-May 1979.
Haviland, M. L. et al., Fuel Economy Improvements . . . Road Tests, SAE Paper 790,945, Oct. 1979.

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