Evaluating Gasoline Additives for Intake-Valve Cleanliness Using the Volkswagen Polo Engine 892118
Running the Volkswagen Polo engine through a 40 h high-load - high-speed test cycle has proved to be a reliable screening test for evaluating different additives for intake-valve cleanliness. This engine has been found to be sensitive to the chemistry and composition of the additive.
Apart from the detergent/dispersant component, additional partly detrimental effects on the intake-valve deposits due to corrosion inhibitors were observed.
An optimized combination of detergent/dispersant, corrosion inhibitor and mineral oil carrier led to such low valve deposits that no need for a synthetic carrier could be shown.
The engine was also adequate for evaluating the capabilities of different market gasolines to inhibit valve deposits.
Citation: Gohn, M., "Evaluating Gasoline Additives for Intake-Valve Cleanliness Using the Volkswagen Polo Engine," SAE Technical Paper 892118, 1989, https://doi.org/10.4271/892118. Download Citation
Author(s):
Michael R. Gohn
Affiliated:
OeMV-AG, Austria
Pages: 8
Event:
1989 SAE International Fall Fuels and Lubricants Meeting and Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Fuel and Induction System Deposits-SP-0797
Related Topics:
Fuel additives
Valves
Gasoline
Corrosion
Optimization
Reliability
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