This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Vehicle Evaluation of Synthetic and Conventional Engine Oils
Annotation ability available
Sector:
Language:
English
Abstract
A five-vehicle, 64 000-km test with 7.45 litre V-8 engines was conducted to determine if synthetic engine oils provided performance sufficiently superior to that of conventional engine oils to permit longer oil change intervals. The results show better performance in two areas of deposit control; inferior performance with respect to wear protection; and essentially equivalent performance in the areas of fuel and oil economies. Based on these data, it was concluded that synthetic engine oils do not provide the necessary performance required to safely recommend their use for extended oil change intervals. In addition, a cost analysis shows that the use of synthetic engine oils, even at a change interval of 32 000 km, will essentially double the customers' cost compared with conventional engine oils at GM's current 12 000-km change interval.
Recommended Content
Technical Paper | Impact of Oil Volatility in Extended Drain Service |
Technical Paper | Diester Synthetic Lubricants For Automotive and Diesel Applications |
Technical Paper | Fleet Tests of Synthetic Lubricants |
Authors
Citation
Rodgers, J. and Kabel, R., "Vehicle Evaluation of Synthetic and Conventional Engine Oils," SAE Technical Paper 750827, 1975, https://doi.org/10.4271/750827.Also In
References
- Gunderson, R. C. Hart, A. W. Synthetic Lubricants Reinhold Publishing Co. New York 1962
- Lyndall, J. “Synthetic Oils - Test Tubes vs the Oil Well,” Fleet Owner May 1974 53 58 96
- Miller, B. J. Rogers, T. W. Smith, D. B. Trautwein, W. P. “Synthetic Engine Oils - A New Concept,” SAE Automotive Engineering Congress February 25 1974 740120
- Richman, W. H. Keller, J. A. “An Engine Oil Formulated for Optimized Engine Performance,” SAE Automotive Engineering Congress and Exposition February 24 1975 750376
- Imparato, L. Berti, F. Mancini, G. Pusateri, G. “Use of Synthetic Lubricants in Multigrade Motor Oils,” SAE Automotive Engineering Congress February 25 1974 740118
- “Synthetics May Help U. S. If Supply Pinch Develops,” The Oil Daily November 8 1974 24
- Hingst, R. A. “Synthetic Oil - Is It Really Super?” Automotive News August 26 1974 8
- Klement, D. “Synthetic Oil: Taking the Crank Out of the Crankcase,” The Detroit Free Press July 14 1974 Detroit 1B
- SAE Technical Report J183a 1975 418