Extended service 5W-40 motor oil

Details Extended service 5W-40 motor oil Extended service 5W-40 motor oil

1982-02-16

1983-09-06

Gantz, Delbert E.

Compositions

Electrolytes for electrical devices

252 515R, 252 56R, 208 19, C10G 7100, C10M 148, C10M 342

Patent

active

044028415

ABSTRACT:
An extended drain 5W-40 motor oil composition for internal combustion engines comprises a base oil component of one or more solvent extracted mineral oils and a high refractory mineral oil, a V.I. improver, and preferably other suitable lube oil additives. The finished oil formulation has characteristics of minimal viscosity at low temperatures, low volatility at higher temperatures, and stable viscosity over extended use.

REFERENCES:
patent: 2360446 (1944-10-01), Reid
patent: 3303125 (1967-02-01), Marter
patent: 3493505 (1970-02-01), Ries, Jr.
patent: 3640868 (1972-02-01), Rocchini
patent: 3904507 (1975-09-01), Mills
patent: 3915871 (1975-10-01), Bryer et al.
patent: 3970543 (1976-07-01), McIntosh
patent: 3992283 (1976-11-01), Hutchings
patent: 4157294 (1979-06-01), Iwao et al.
patent: 4213845 (1980-07-01), Masada

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