Mechanism of Engine Sludge Formation and Additive Action Esso Research and Engineering Company

Format:

Conference/Event

Author/Creator:

Rogers, D. T., author.

Conference Name:

SAE Golden Anniversary Fuels & Lubricants Meeting

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1956

Summary:

THE bulk of low-temperature gasoline engine sludge is formed from the fuel rather than the lubricant, according to tests performed by the authors. Their tests indicate that most of this sludge is formed in the crankcase lubricant from oil-soluble, low molecular weight fuel oxidation products. They report that oil-soluble, sludge-forming intermediates have been isolated from used crankcase oils.Reduction in low-temperature engine sludge deposits by commercial "detergent inhibitor" additive combinations is seen to be due mainly to an inhibition mechanism rather than a "detergency dispersion" mechanism, as previously assumed.Ability of some synthetic lubricants containing oxygen to minimize sludge deposits appears, according to the authors, to result from their ability to dissolve a substantial proportion of the sludge component which normally acts as a precipitating agent for the total sludge.A cyclic laboratory engine test is described which produces the same type and yield of sludge deposits as obtained under very severe field conditions; namely, stop-and-go light-duty delivery trucks

Notes:

Vendor supplied data

Publisher Number:

560067

Access Restriction:

Restricted for use by site license