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The Effects of Some Engine, Fuel, and Oil Additive Factors on Engine Rusting in Short-Trip Service
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Sector:
Event:
Mid-Year Meeting
Language:
English
Abstract
Forty-one short-trip service tests were run using 1964-1969 model U.S. passenger cars and 19 commercial or experimental oils evaluating several aspects of engine rusting. These factors included differences in rusting severity among engine models, effects of fuel variables on rusting, and the effects of oil additive type and concentration on rusting.
Rusting severity varied widely among engine models, but different engines ranked similarly the rust protection provided by oils with differing additive treatments.
Use of either nonleaded gasoline or LPG instead of leaded gasoline greatly reduced engine rusting.
At equivalent additive treatment levels, several magnesium sulfonates provided better rust protection than did certain calcium sulfonates, calcium phenates, or a barium sulfonate. Rust protection increased greatly and approximately linearly with increasing magnesium content.
From these tests, and those reported by others, there appear to be three requirements for engine rusting to occur:
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1.
Addition to the crankcase of corrosive products from the gasoline lead antiknock scavengers and combustion products.
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2.
Cold engine operation, permitting condensation and accumulation of corrosive products in the oil.
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3.
Depletion of rust-preventing oil additives.
Since the first two requirements are at present largely uncontrolled from the customers' standpoint (most gasolines are leaded and contain scavengers, and winter weather is cold in many areas), the only other apparent avenue for improving the rust protection provided to current-design engines using leaded gasolines is better rust-preventing additives in the oil.
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Citation
Pless, L., "The Effects of Some Engine, Fuel, and Oil Additive Factors on Engine Rusting in Short-Trip Service," SAE Technical Paper 700457, 1970, https://doi.org/10.4271/700457.Also In
References
- Bennett P. A. “Engine Rusting in Service and Dynamometer Tests.” Lubrication Engineering 16 November 1960 529
- Bennett P. A. Malone G. K. “The Effect of Several Variables on Engine Rusting in Service Tests.” Lubrication Engineering 20 March 1964 94
- Cordera F. J. Foster H. J. Henderson B. M. Woodruff R. L. “TEL Scavengers in Fuel Affect Engine Performance and Durability.” SAE Transactions 73 1965 576
- Isringhaus, E. A. Jr. Henderson B. M. “Engine Rusting in Automotive Service.” Paper 650868 SAE National Fuels and Lubricants Meeting Tulsa November 1965
- Colyer C. C. Tom T. B. “Another Milestone in Motor Oils.” Paper 951B SAE Automotive Engineering Congress Detroit January 1965
- “Automotive Engines in ‘Light-Duty’ Service.” Lubrication 46 10 November-December 1960 121
- Young D. A. Farris G. J. “Evaluation of Rusting Characteristics of Motor Oils.” Paper 439B SAE National Fuels and Lubricants Meeting Houston November 1961
- Colyer C. C. “The MS Sequence Tests Today.” SAE Transactions 75 1967 paper 660540
- Colyer C. C. Allman L. J. Ladevich R. M. “Balanced Motor Oils for 1968 Engines.” Paper 670499 SAE Mid-Year Meeting Chicago May 1967
- Pless Loren G. Bennett P. A. “The Effects of Some Engine, Operating, and Oil Variables on Engine Rusting in Short-Trip Service.” Lubrication Engineering 25 October 1969 384
- Whitehead W. G. Union Carbide Corp. private communication
- “Local Climatological Data, Detroit, Michigan City Airport.” Environmental Science Services Administration, U. S. Department of Commerce
- McReynolds L. A. “TEL Scavengers in Fuel Affect Engine Performance and Durability.” SAE Transactions 73 1965 596
- Bailey C. H. “Engine Rust-Measurements by a New Technique Shed Light on Why Lubricated Parts Rust.” Paper 717B SAE International Summer Meeting Montreal, Canada June 1963
- Randall T. H. Andrus R. E. Fein R. S. Kluge H. D. “Lubricant Additive Action in Combating Low Temperature Wear in Automotive Engines.” Paper 107A SAE National Fuels and Lubricants Meeting Tulsa November 1958
- ASTM Designation D 664-58 “Standard Method of Test for Neutralization Number by Potentiometric Titration.” 1969 Book of ASTM Standards American Society for Testing and Materials Philadelphia, Pa. 1969
- Asseff P. A. “Engine Performance as Influenced by Lubricant Deterioration.” Paper 680760 SAE Activities Proceedings AP-1 “Fuels and Lubricants 1968 Papers.” 456
- “CRC Rust Rating Manual.” CRC Manual No. 7 Coordinating Research Council, Inc. New York September 1962