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Correlation between the Brazilian Test Procedure for Engine Oils - PROBOL IB - and ASTM VE Sequence
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Abstract
This is a report on a further phase of the work undertaken by PETROBRAS and General Motors do Basil in order to develop a test procedure to evaluate lubricant oils taking into account conditions peculiar to Brazil.
In a previous phase, the procedure designated as PROBOL IB was outlined. It's starting point was the VE Sequence of the American Society for Testing and Materials (ASTM) and it used as test fuel a mixture of gasoline and 22% of anhydrous ethanol, which is the engine fuel usually marketed in the country.
In this present phase, a correlation was attained between results from PROBOL IB and the VE Sequence, using the reference oils utilized by ASTM accredited laboratories for calibration and determining severity on test benches.
It was also concluded that the PROBOL IB procedure presents a good repeatability and is less severe than the VE Sequence.
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Citation
Lastres, L., "Correlation between the Brazilian Test Procedure for Engine Oils - PROBOL IB - and ASTM VE Sequence," SAE Technical Paper 982874, 1998, https://doi.org/10.4271/982874.Also In
References
- AMERICAN SOCIETY FOR TESTING AND MATERIALS Multicylinder test sequences for evaluating automotive engine oils Philadelphia 1981 3 ASTM Special Technical Publication - 315 H
- LASTRES, L. F. M. Procedimento de teste com motor GM 2,0 L para avaliação de óleos lubrificantes - PROBOL IA Rio de Janeiro 1991
- AMERICAN SOCIETY FOR TESTING AND MATERIALS Sequence VE Test procedure Pittsburgh 1983 209
- LASTRES, L. F. M. Procedimento de teste com motor GM 2,0 L para avaliação de óleos lubrificantes - PROBOL IB Rio de Janeiro 1993 13f
- RICCI, M. LASTRES, L. F. M. ALMEIDA, M. A. G. Avaliação de Óleos de Mercado no Ensaio PROBOL IB 4 1995 São Paulo São Paulo Society of Automotive Engineers Brasil 1995
- CHEMICALMANUFACTURERS ASSOCIATION Petrochemical additives panel product approval code of practice San Antonio 1992 1